Home / 660,139,793.10-990,209,689.65-200,018,175.30

Finding the Fourth Proportional to 660,139,793.10, 990,209,689.65 and 200,018,175.30

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Solution

The fourth proportional to 660,139,793.10, 990,209,689.65 and 200,018,175.30 is: 300,027,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,139,793.10 : 990,209,689.65 = 200,018,175.30 : x
  2. Step 2: Convert to fraction form
    660,139,793.10/990,209,689.65 = 200,018,175.30/x
  3. Step 3: Cross multiply
    660,139,793.10x = 990,209,689.65 × 200,018,175.30
  4. Step 4: Simplify right side
    660,139,793.10x = 198,059,935,288,172,288
  5. Step 5: Solve for x
    x = 198,059,935,288,172,288/660,139,793.10
  6. Step 6: Final answer
    x = 300,027,262.95

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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.