Home / 81,668,475.60-112,710,438.72-61,006,049.52

Finding the Fourth Proportional to 81,668,475.60, 112,710,438.72 and 61,006,049.52

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Solution

The fourth proportional to 81,668,475.60, 112,710,438.72 and 61,006,049.52 is: 84,194,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,668,475.60 : 112,710,438.72 = 61,006,049.52 : x
  2. Step 2: Convert to fraction form
    81,668,475.60/112,710,438.72 = 61,006,049.52/x
  3. Step 3: Cross multiply
    81,668,475.60x = 112,710,438.72 × 61,006,049.52
  4. Step 4: Simplify right side
    81,668,475.60x = 6,876,018,605,973,246
  5. Step 5: Solve for x
    x = 6,876,018,605,973,246/81,668,475.60
  6. Step 6: Final answer
    x = 84,194,281.28

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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.