Home / 83,043,058.20-124,564,587.30-78,886,008.60

Finding the Fourth Proportional to 83,043,058.20, 124,564,587.30 and 78,886,008.60

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Solution

The fourth proportional to 83,043,058.20, 124,564,587.30 and 78,886,008.60 is: 118,329,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043,058.20 : 124,564,587.30 = 78,886,008.60 : x
  2. Step 2: Convert to fraction form
    83,043,058.20/124,564,587.30 = 78,886,008.60/x
  3. Step 3: Cross multiply
    83,043,058.20x = 124,564,587.30 × 78,886,008.60
  4. Step 4: Simplify right side
    83,043,058.20x = 9,826,403,105,003,250
  5. Step 5: Solve for x
    x = 9,826,403,105,003,250/83,043,058.20
  6. Step 6: Final answer
    x = 118,329,012.90

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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.