Home / 321,941,320.40-482,974,966.20-137,708,440.40

Finding the Fourth Proportional to 321,941,320.40, 482,974,966.20 and 137,708,440.40

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Solution

The fourth proportional to 321,941,320.40, 482,974,966.20 and 137,708,440.40 is: 206,589,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,941,320.40 : 482,974,966.20 = 137,708,440.40 : x
  2. Step 2: Convert to fraction form
    321,941,320.40/482,974,966.20 = 137,708,440.40/x
  3. Step 3: Cross multiply
    321,941,320.40x = 482,974,966.20 × 137,708,440.40
  4. Step 4: Simplify right side
    321,941,320.40x = 66,509,729,347,644,712
  5. Step 5: Solve for x
    x = 66,509,729,347,644,712/321,941,320.40
  6. Step 6: Final answer
    x = 206,589,602.31

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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.