Home / 107,780,001.20-161,670,001.80-39,613,835.60

Finding the Fourth Proportional to 107,780,001.20, 161,670,001.80 and 39,613,835.60

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Solution

The fourth proportional to 107,780,001.20, 161,670,001.80 and 39,613,835.60 is: 59,420,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,780,001.20 : 161,670,001.80 = 39,613,835.60 : x
  2. Step 2: Convert to fraction form
    107,780,001.20/161,670,001.80 = 39,613,835.60/x
  3. Step 3: Cross multiply
    107,780,001.20x = 161,670,001.80 × 39,613,835.60
  4. Step 4: Simplify right side
    107,780,001.20x = 6,404,368,872,756,905
  5. Step 5: Solve for x
    x = 6,404,368,872,756,905/107,780,001.20
  6. Step 6: Final answer
    x = 59,420,753.40

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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.