Home / 42,532,761.20-63,799,141.80-20,977,689.20

Finding the Fourth Proportional to 42,532,761.20, 63,799,141.80 and 20,977,689.20

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Solution

The fourth proportional to 42,532,761.20, 63,799,141.80 and 20,977,689.20 is: 31,466,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,532,761.20 : 63,799,141.80 = 20,977,689.20 : x
  2. Step 2: Convert to fraction form
    42,532,761.20/63,799,141.80 = 20,977,689.20/x
  3. Step 3: Cross multiply
    42,532,761.20x = 63,799,141.80 × 20,977,689.20
  4. Step 4: Simplify right side
    42,532,761.20x = 1,338,358,567,907,128.50
  5. Step 5: Solve for x
    x = 1,338,358,567,907,128.50/42,532,761.20
  6. Step 6: Final answer
    x = 31,466,533.80

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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.