Home / 56,787,742.40-85,181,613.60-53,428,510.40

Finding the Fourth Proportional to 56,787,742.40, 85,181,613.60 and 53,428,510.40

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Solution

The fourth proportional to 56,787,742.40, 85,181,613.60 and 53,428,510.40 is: 80,142,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,787,742.40 : 85,181,613.60 = 53,428,510.40 : x
  2. Step 2: Convert to fraction form
    56,787,742.40/85,181,613.60 = 53,428,510.40/x
  3. Step 3: Cross multiply
    56,787,742.40x = 85,181,613.60 × 53,428,510.40
  4. Step 4: Simplify right side
    56,787,742.40x = 4,551,126,728,116,381
  5. Step 5: Solve for x
    x = 4,551,126,728,116,381/56,787,742.40
  6. Step 6: Final answer
    x = 80,142,765.60

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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.