Home / 616,206,864.92-850,456,741.88-390,166,858.24

Finding the Fourth Proportional to 616,206,864.92, 850,456,741.88 and 390,166,858.24

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Solution

The fourth proportional to 616,206,864.92, 850,456,741.88 and 390,166,858.24 is: 538,488,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,206,864.92 : 850,456,741.88 = 390,166,858.24 : x
  2. Step 2: Convert to fraction form
    616,206,864.92/850,456,741.88 = 390,166,858.24/x
  3. Step 3: Cross multiply
    616,206,864.92x = 850,456,741.88 × 390,166,858.24
  4. Step 4: Simplify right side
    616,206,864.92x = 331,820,035,047,195,520
  5. Step 5: Solve for x
    x = 331,820,035,047,195,520/616,206,864.92
  6. Step 6: Final answer
    x = 538,488,053.18

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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.