Home / 101,440,272.60-139,975,766.24-56,788,689.74

Finding the Fourth Proportional to 101,440,272.60, 139,975,766.24 and 56,788,689.74

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Solution

The fourth proportional to 101,440,272.60, 139,975,766.24 and 56,788,689.74 is: 78,361,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,440,272.60 : 139,975,766.24 = 56,788,689.74 : x
  2. Step 2: Convert to fraction form
    101,440,272.60/139,975,766.24 = 56,788,689.74/x
  3. Step 3: Cross multiply
    101,440,272.60x = 139,975,766.24 × 56,788,689.74
  4. Step 4: Simplify right side
    101,440,272.60x = 7,949,040,359,138,305
  5. Step 5: Solve for x
    x = 7,949,040,359,138,305/101,440,272.60
  6. Step 6: Final answer
    x = 78,361,780.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.