Home / 672,616,936.14-928,234,274.34-390,337,521.90

Finding the Fourth Proportional to 672,616,936.14, 928,234,274.34 and 390,337,521.90

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Solution

The fourth proportional to 672,616,936.14, 928,234,274.34 and 390,337,521.90 is: 538,679,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,616,936.14 : 928,234,274.34 = 390,337,521.90 : x
  2. Step 2: Convert to fraction form
    672,616,936.14/928,234,274.34 = 390,337,521.90/x
  3. Step 3: Cross multiply
    672,616,936.14x = 928,234,274.34 × 390,337,521.90
  4. Step 4: Simplify right side
    672,616,936.14x = 362,324,666,388,520,320
  5. Step 5: Solve for x
    x = 362,324,666,388,520,320/672,616,936.14
  6. Step 6: Final answer
    x = 538,679,071.13

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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.