Home / 20,956,886.10-31,435,329.15-19,964,862.90

Finding the Fourth Proportional to 20,956,886.10, 31,435,329.15 and 19,964,862.90

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Solution

The fourth proportional to 20,956,886.10, 31,435,329.15 and 19,964,862.90 is: 29,947,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,886.10 : 31,435,329.15 = 19,964,862.90 : x
  2. Step 2: Convert to fraction form
    20,956,886.10/31,435,329.15 = 19,964,862.90/x
  3. Step 3: Cross multiply
    20,956,886.10x = 31,435,329.15 × 19,964,862.90
  4. Step 4: Simplify right side
    20,956,886.10x = 627,602,036,696,123.50
  5. Step 5: Solve for x
    x = 627,602,036,696,123.50/20,956,886.10
  6. Step 6: Final answer
    x = 29,947,294.35

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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.