Home / 80,842,124.40-121,280,901.30-39,921,167.40

Finding the Fourth Proportional to 80,842,124.40, 121,280,901.30 and 39,921,167.40

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Solution

The fourth proportional to 80,842,124.40, 121,280,901.30 and 39,921,167.40 is: 59,890,498.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,842,124.40 : 121,280,901.30 = 39,921,167.40 : x
  2. Step 2: Convert to fraction form
    80,842,124.40/121,280,901.30 = 39,921,167.40/x
  3. Step 3: Cross multiply
    80,842,124.40x = 121,280,901.30 × 39,921,167.40
  4. Step 4: Simplify right side
    80,842,124.40x = 4,841,675,163,220,177
  5. Step 5: Solve for x
    x = 4,841,675,163,220,177/80,842,124.40
  6. Step 6: Final answer
    x = 59,890,498.91

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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.