Home / 28,356,905.20-42,547,167.60-9,193,536.40

Finding the Fourth Proportional to 28,356,905.20, 42,547,167.60 and 9,193,536.40

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Solution

The fourth proportional to 28,356,905.20, 42,547,167.60 and 9,193,536.40 is: 13,794,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356,905.20 : 42,547,167.60 = 9,193,536.40 : x
  2. Step 2: Convert to fraction form
    28,356,905.20/42,547,167.60 = 9,193,536.40/x
  3. Step 3: Cross multiply
    28,356,905.20x = 42,547,167.60 × 9,193,536.40
  4. Step 4: Simplify right side
    28,356,905.20x = 391,158,934,047,500.69
  5. Step 5: Solve for x
    x = 391,158,934,047,500.69/28,356,905.20
  6. Step 6: Final answer
    x = 13,794,133.43

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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.