Home / 1,008,075,389.40-1,512,113,084.10-946,853,386.20

Finding the Fourth Proportional to 1,008,075,389.40, 1,512,113,084.10 and 946,853,386.20

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Solution

The fourth proportional to 1,008,075,389.40, 1,512,113,084.10 and 946,853,386.20 is: 1,420,280,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,075,389.40 : 1,512,113,084.10 = 946,853,386.20 : x
  2. Step 2: Convert to fraction form
    1,008,075,389.40/1,512,113,084.10 = 946,853,386.20/x
  3. Step 3: Cross multiply
    1,008,075,389.40x = 1,512,113,084.10 × 946,853,386.20
  4. Step 4: Simplify right side
    1,008,075,389.40x = 1,431,749,393,997,410,304
  5. Step 5: Solve for x
    x = 1,431,749,393,997,410,304/1,008,075,389.40
  6. Step 6: Final answer
    x = 1,420,280,079.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.