Home / 291,310,279.40-436,965,419.10-155,261,383.40

Finding the Fourth Proportional to 291,310,279.40, 436,965,419.10 and 155,261,383.40

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Solution

The fourth proportional to 291,310,279.40, 436,965,419.10 and 155,261,383.40 is: 232,892,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,310,279.40 : 436,965,419.10 = 155,261,383.40 : x
  2. Step 2: Convert to fraction form
    291,310,279.40/436,965,419.10 = 155,261,383.40/x
  3. Step 3: Cross multiply
    291,310,279.40x = 436,965,419.10 × 155,261,383.40
  4. Step 4: Simplify right side
    291,310,279.40x = 67,843,855,467,426,792
  5. Step 5: Solve for x
    x = 67,843,855,467,426,792/291,310,279.40
  6. Step 6: Final answer
    x = 232,892,075.10

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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.