Home / 527,623,541.16-791,442,047.02-139,443,017.72

Finding the Fourth Proportional to 527,623,541.16, 791,442,047.02 and 139,443,017.72

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Solution

The fourth proportional to 527,623,541.16, 791,442,047.02 and 139,443,017.72 is: 209,166,306.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,623,541.16 : 791,442,047.02 = 139,443,017.72 : x
  2. Step 2: Convert to fraction form
    527,623,541.16/791,442,047.02 = 139,443,017.72/x
  3. Step 3: Cross multiply
    527,623,541.16x = 791,442,047.02 × 139,443,017.72
  4. Step 4: Simplify right side
    527,623,541.16x = 110,361,067,386,962,928
  5. Step 5: Solve for x
    x = 110,361,067,386,962,928/527,623,541.16
  6. Step 6: Final answer
    x = 209,166,306.61

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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.