Home / 124,123,808.60-171,290,854.50-71,943,111.20

Finding the Fourth Proportional to 124,123,808.60, 171,290,854.50 and 71,943,111.20

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Solution

The fourth proportional to 124,123,808.60, 171,290,854.50 and 71,943,111.20 is: 99,281,492.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,123,808.60 : 171,290,854.50 = 71,943,111.20 : x
  2. Step 2: Convert to fraction form
    124,123,808.60/171,290,854.50 = 71,943,111.20/x
  3. Step 3: Cross multiply
    124,123,808.60x = 171,290,854.50 × 71,943,111.20
  4. Step 4: Simplify right side
    124,123,808.60x = 12,323,196,992,836,520
  5. Step 5: Solve for x
    x = 12,323,196,992,836,520/124,123,808.60
  6. Step 6: Final answer
    x = 99,281,492.66

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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.