Home / 13,442,569,761.60-20,163,854,642.40-7,243,841,937.60

Finding the Fourth Proportional to 13,442,569,761.60, 20,163,854,642.40 and 7,243,841,937.60

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Solution

The fourth proportional to 13,442,569,761.60, 20,163,854,642.40 and 7,243,841,937.60 is: 10,865,762,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,569,761.60 : 20,163,854,642.40 = 7,243,841,937.60 : x
  2. Step 2: Convert to fraction form
    13,442,569,761.60/20,163,854,642.40 = 7,243,841,937.60/x
  3. Step 3: Cross multiply
    13,442,569,761.60x = 20,163,854,642.40 × 7,243,841,937.60
  4. Step 4: Simplify right side
    13,442,569,761.60x = 146,063,775,882,287,595,520
  5. Step 5: Solve for x
    x = 146,063,775,882,287,595,520/13,442,569,761.60
  6. Step 6: Final answer
    x = 10,865,762,906.40

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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.