Home / 28,200,862.40-42,312,352.80-10,251,780.80

Finding the Fourth Proportional to 28,200,862.40, 42,312,352.80 and 10,251,780.80

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Solution

The fourth proportional to 28,200,862.40, 42,312,352.80 and 10,251,780.80 is: 15,381,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200,862.40 : 42,312,352.80 = 10,251,780.80 : x
  2. Step 2: Convert to fraction form
    28,200,862.40/42,312,352.80 = 10,251,780.80/x
  3. Step 3: Cross multiply
    28,200,862.40x = 42,312,352.80 × 10,251,780.80
  4. Step 4: Simplify right side
    28,200,862.40x = 433,776,966,037,866.25
  5. Step 5: Solve for x
    x = 433,776,966,037,866.25/28,200,862.40
  6. Step 6: Final answer
    x = 15,381,691.52

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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.