Home / 673,227,569.78-928,983,239.97-390,914,825.66

Finding the Fourth Proportional to 673,227,569.78, 928,983,239.97 and 390,914,825.66

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Solution

The fourth proportional to 673,227,569.78, 928,983,239.97 and 390,914,825.66 is: 539,421,345.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,227,569.78 : 928,983,239.97 = 390,914,825.66 : x
  2. Step 2: Convert to fraction form
    673,227,569.78/928,983,239.97 = 390,914,825.66/x
  3. Step 3: Cross multiply
    673,227,569.78x = 928,983,239.97 × 390,914,825.66
  4. Step 4: Simplify right side
    673,227,569.78x = 363,153,321,293,934,528
  5. Step 5: Solve for x
    x = 363,153,321,293,934,528/673,227,569.78
  6. Step 6: Final answer
    x = 539,421,345.17

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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.