Home / 7,013,400.48-9,678,398.40-3,915,972

Finding the Fourth Proportional to 7,013,400.48, 9,678,398.40 and 3,915,972

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Solution

The fourth proportional to 7,013,400.48, 9,678,398.40 and 3,915,972 is: 5,403,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013,400.48 : 9,678,398.40 = 3,915,972 : x
  2. Step 2: Convert to fraction form
    7,013,400.48/9,678,398.40 = 3,915,972/x
  3. Step 3: Cross multiply
    7,013,400.48x = 9,678,398.40 × 3,915,972
  4. Step 4: Simplify right side
    7,013,400.48x = 37,900,337,139,244.80
  5. Step 5: Solve for x
    x = 37,900,337,139,244.80/7,013,400.48
  6. Step 6: Final answer
    x = 5,403,988.73

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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.