Home / 66,465,140.40-99,523,657.80-53,442,068.40

Finding the Fourth Proportional to 66,465,140.40, 99,523,657.80 and 53,442,068.40

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Solution

The fourth proportional to 66,465,140.40, 99,523,657.80 and 53,442,068.40 is: 80,023,153.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,465,140.40 : 99,523,657.80 = 53,442,068.40 : x
  2. Step 2: Convert to fraction form
    66,465,140.40/99,523,657.80 = 53,442,068.40/x
  3. Step 3: Cross multiply
    66,465,140.40x = 99,523,657.80 × 53,442,068.40
  4. Step 4: Simplify right side
    66,465,140.40x = 5,318,750,127,565,793
  5. Step 5: Solve for x
    x = 5,318,750,127,565,793/66,465,140.40
  6. Step 6: Final answer
    x = 80,023,153.42

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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.