Home / 20,045,417.15-27,662,693.40-10,878,059.90

Finding the Fourth Proportional to 20,045,417.15, 27,662,693.40 and 10,878,059.90

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Solution

The fourth proportional to 20,045,417.15, 27,662,693.40 and 10,878,059.90 is: 15,011,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045,417.15 : 27,662,693.40 = 10,878,059.90 : x
  2. Step 2: Convert to fraction form
    20,045,417.15/27,662,693.40 = 10,878,059.90/x
  3. Step 3: Cross multiply
    20,045,417.15x = 27,662,693.40 × 10,878,059.90
  4. Step 4: Simplify right side
    20,045,417.15x = 300,916,435,869,691.38
  5. Step 5: Solve for x
    x = 300,916,435,869,691.38/20,045,417.15
  6. Step 6: Final answer
    x = 15,011,732.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.