Home / 261,422,043.67-392,067,717.92-77,152,946.95

Finding the Fourth Proportional to 261,422,043.67, 392,067,717.92 and 77,152,946.95

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Solution

The fourth proportional to 261,422,043.67, 392,067,717.92 and 77,152,946.95 is: 115,710,134.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,422,043.67 : 392,067,717.92 = 77,152,946.95 : x
  2. Step 2: Convert to fraction form
    261,422,043.67/392,067,717.92 = 77,152,946.95/x
  3. Step 3: Cross multiply
    261,422,043.67x = 392,067,717.92 × 77,152,946.95
  4. Step 4: Simplify right side
    261,422,043.67x = 30,249,179,839,143,220
  5. Step 5: Solve for x
    x = 30,249,179,839,143,220/261,422,043.67
  6. Step 6: Final answer
    x = 115,710,134.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.