Home / 665,000,187.20-917,728,599.84-371,644,746.56

Finding the Fourth Proportional to 665,000,187.20, 917,728,599.84 and 371,644,746.56

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Solution

The fourth proportional to 665,000,187.20, 917,728,599.84 and 371,644,746.56 is: 512,885,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,000,187.20 : 917,728,599.84 = 371,644,746.56 : x
  2. Step 2: Convert to fraction form
    665,000,187.20/917,728,599.84 = 371,644,746.56/x
  3. Step 3: Cross multiply
    665,000,187.20x = 917,728,599.84 × 371,644,746.56
  4. Step 4: Simplify right side
    665,000,187.20x = 341,069,012,898,400,448
  5. Step 5: Solve for x
    x = 341,069,012,898,400,448/665,000,187.20
  6. Step 6: Final answer
    x = 512,885,589.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.