Home / 71,765,999.10-107,648,998.65-66,223,266.30

Finding the Fourth Proportional to 71,765,999.10, 107,648,998.65 and 66,223,266.30

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Solution

The fourth proportional to 71,765,999.10, 107,648,998.65 and 66,223,266.30 is: 99,334,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,765,999.10 : 107,648,998.65 = 66,223,266.30 : x
  2. Step 2: Convert to fraction form
    71,765,999.10/107,648,998.65 = 66,223,266.30/x
  3. Step 3: Cross multiply
    71,765,999.10x = 107,648,998.65 × 66,223,266.30
  4. Step 4: Simplify right side
    71,765,999.10x = 7,128,868,304,527,291
  5. Step 5: Solve for x
    x = 7,128,868,304,527,291/71,765,999.10
  6. Step 6: Final answer
    x = 99,334,899.45

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Double scale
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Similar ratio
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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.