Home / 87,916,356.73-121,346,619.78-59,706,461.42

Finding the Fourth Proportional to 87,916,356.73, 121,346,619.78 and 59,706,461.42

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Solution

The fourth proportional to 87,916,356.73, 121,346,619.78 and 59,706,461.42 is: 82,409,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,916,356.73 : 121,346,619.78 = 59,706,461.42 : x
  2. Step 2: Convert to fraction form
    87,916,356.73/121,346,619.78 = 59,706,461.42/x
  3. Step 3: Cross multiply
    87,916,356.73x = 121,346,619.78 × 59,706,461.42
  4. Step 4: Simplify right side
    87,916,356.73x = 7,245,177,272,341,979
  5. Step 5: Solve for x
    x = 7,245,177,272,341,979/87,916,356.73
  6. Step 6: Final answer
    x = 82,409,889.83

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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.