Home / 209,808,000.30-314,712,000.45-205,776,921.90

Finding the Fourth Proportional to 209,808,000.30, 314,712,000.45 and 205,776,921.90

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Solution

The fourth proportional to 209,808,000.30, 314,712,000.45 and 205,776,921.90 is: 308,665,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,808,000.30 : 314,712,000.45 = 205,776,921.90 : x
  2. Step 2: Convert to fraction form
    209,808,000.30/314,712,000.45 = 205,776,921.90/x
  3. Step 3: Cross multiply
    209,808,000.30x = 314,712,000.45 × 205,776,921.90
  4. Step 4: Simplify right side
    209,808,000.30x = 64,760,466,737,592,416
  5. Step 5: Solve for x
    x = 64,760,466,737,592,416/209,808,000.30
  6. Step 6: Final answer
    x = 308,665,382.85

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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.