Home / 83,043,057.20-124,564,585.80-78,886,007.60

Finding the Fourth Proportional to 83,043,057.20, 124,564,585.80 and 78,886,007.60

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Solution

The fourth proportional to 83,043,057.20, 124,564,585.80 and 78,886,007.60 is: 118,329,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043,057.20 : 124,564,585.80 = 78,886,007.60 : x
  2. Step 2: Convert to fraction form
    83,043,057.20/124,564,585.80 = 78,886,007.60/x
  3. Step 3: Cross multiply
    83,043,057.20x = 124,564,585.80 × 78,886,007.60
  4. Step 4: Simplify right side
    83,043,057.20x = 9,826,402,862,109,652
  5. Step 5: Solve for x
    x = 9,826,402,862,109,652/83,043,057.20
  6. Step 6: Final answer
    x = 118,329,011.40

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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.