Home / 616,206,867.17-850,456,744.99-390,166,860.49

Finding the Fourth Proportional to 616,206,867.17, 850,456,744.99 and 390,166,860.49

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Solution

The fourth proportional to 616,206,867.17, 850,456,744.99 and 390,166,860.49 is: 538,488,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,206,867.17 : 850,456,744.99 = 390,166,860.49 : x
  2. Step 2: Convert to fraction form
    616,206,867.17/850,456,744.99 = 390,166,860.49/x
  3. Step 3: Cross multiply
    616,206,867.17x = 850,456,744.99 × 390,166,860.49
  4. Step 4: Simplify right side
    616,206,867.17x = 331,820,038,172,191,296
  5. Step 5: Solve for x
    x = 331,820,038,172,191,296/616,206,867.17
  6. Step 6: Final answer
    x = 538,488,056.29

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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.