Home / 81,668,490.60-112,710,459.78-61,006,064.52

Finding the Fourth Proportional to 81,668,490.60, 112,710,459.78 and 61,006,064.52

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Solution

The fourth proportional to 81,668,490.60, 112,710,459.78 and 61,006,064.52 is: 84,194,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668,490.60 : 112,710,459.78 = 61,006,064.52 : x
  2. Step 2: Convert to fraction form
    81,668,490.60/112,710,459.78 = 61,006,064.52/x
  3. Step 3: Cross multiply
    81,668,490.60x = 112,710,459.78 × 61,006,064.52
  4. Step 4: Simplify right side
    81,668,490.60x = 6,876,021,581,417,545
  5. Step 5: Solve for x
    x = 6,876,021,581,417,545/81,668,490.60
  6. Step 6: Final answer
    x = 84,194,302.24

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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.