Home / 83,623,460.61-115,403,654.22-57,217,200.66

Finding the Fourth Proportional to 83,623,460.61, 115,403,654.22 and 57,217,200.66

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Solution

The fourth proportional to 83,623,460.61, 115,403,654.22 and 57,217,200.66 is: 78,961,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,623,460.61 : 115,403,654.22 = 57,217,200.66 : x
  2. Step 2: Convert to fraction form
    83,623,460.61/115,403,654.22 = 57,217,200.66/x
  3. Step 3: Cross multiply
    83,623,460.61x = 115,403,654.22 × 57,217,200.66
  4. Step 4: Simplify right side
    83,623,460.61x = 6,603,074,040,402,995
  5. Step 5: Solve for x
    x = 6,603,074,040,402,995/83,623,460.61
  6. Step 6: Final answer
    x = 78,961,980.19

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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.