Home / 81,668,488.60-112,710,457.02-61,006,062.52

Finding the Fourth Proportional to 81,668,488.60, 112,710,457.02 and 61,006,062.52

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Solution

The fourth proportional to 81,668,488.60, 112,710,457.02 and 61,006,062.52 is: 84,194,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668,488.60 : 112,710,457.02 = 61,006,062.52 : x
  2. Step 2: Convert to fraction form
    81,668,488.60/112,710,457.02 = 61,006,062.52/x
  3. Step 3: Cross multiply
    81,668,488.60x = 112,710,457.02 × 61,006,062.52
  4. Step 4: Simplify right side
    81,668,488.60x = 6,876,021,187,619,893
  5. Step 5: Solve for x
    x = 6,876,021,187,619,893/81,668,488.60
  6. Step 6: Final answer
    x = 84,194,299.48

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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.