Home / 83,043,070.20-124,564,605.30-78,886,020.60

Finding the Fourth Proportional to 83,043,070.20, 124,564,605.30 and 78,886,020.60

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Solution

The fourth proportional to 83,043,070.20, 124,564,605.30 and 78,886,020.60 is: 118,329,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043,070.20 : 124,564,605.30 = 78,886,020.60 : x
  2. Step 2: Convert to fraction form
    83,043,070.20/124,564,605.30 = 78,886,020.60/x
  3. Step 3: Cross multiply
    83,043,070.20x = 124,564,605.30 × 78,886,020.60
  4. Step 4: Simplify right side
    83,043,070.20x = 9,826,406,019,726,668
  5. Step 5: Solve for x
    x = 9,826,406,019,726,668/83,043,070.20
  6. Step 6: Final answer
    x = 118,329,030.90

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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.