Home / 205,986,002.94-308,931,106.68-76,654,521.18

Finding the Fourth Proportional to 205,986,002.94, 308,931,106.68 and 76,654,521.18

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Solution

The fourth proportional to 205,986,002.94, 308,931,106.68 and 76,654,521.18 is: 114,963,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,986,002.94 : 308,931,106.68 = 76,654,521.18 : x
  2. Step 2: Convert to fraction form
    205,986,002.94/308,931,106.68 = 76,654,521.18/x
  3. Step 3: Cross multiply
    205,986,002.94x = 308,931,106.68 × 76,654,521.18
  4. Step 4: Simplify right side
    205,986,002.94x = 23,680,966,060,162,904
  5. Step 5: Solve for x
    x = 23,680,966,060,162,904/205,986,002.94
  6. Step 6: Final answer
    x = 114,963,957.37

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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.