Home / 1,378,993,075.10-2,068,489,612.65-1,206,806,191.10

Finding the Fourth Proportional to 1,378,993,075.10, 2,068,489,612.65 and 1,206,806,191.10

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Solution

The fourth proportional to 1,378,993,075.10, 2,068,489,612.65 and 1,206,806,191.10 is: 1,810,209,286.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,993,075.10 : 2,068,489,612.65 = 1,206,806,191.10 : x
  2. Step 2: Convert to fraction form
    1,378,993,075.10/2,068,489,612.65 = 1,206,806,191.10/x
  3. Step 3: Cross multiply
    1,378,993,075.10x = 2,068,489,612.65 × 1,206,806,191.10
  4. Step 4: Simplify right side
    1,378,993,075.10x = 2,496,266,070,772,060,672
  5. Step 5: Solve for x
    x = 2,496,266,070,772,060,672/1,378,993,075.10
  6. Step 6: Final answer
    x = 1,810,209,286.65

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Double scale
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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.