Home / 684,298,901.10-1,024,432,812.45-644,436,014.70

Finding the Fourth Proportional to 684,298,901.10, 1,024,432,812.45 and 644,436,014.70

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Solution

The fourth proportional to 684,298,901.10, 1,024,432,812.45 and 644,436,014.70 is: 964,755,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,298,901.10 : 1,024,432,812.45 = 644,436,014.70 : x
  2. Step 2: Convert to fraction form
    684,298,901.10/1,024,432,812.45 = 644,436,014.70/x
  3. Step 3: Cross multiply
    684,298,901.10x = 1,024,432,812.45 × 644,436,014.70
  4. Step 4: Simplify right side
    684,298,901.10x = 660,181,398,983,190,656
  5. Step 5: Solve for x
    x = 660,181,398,983,190,656/684,298,901.10
  6. Step 6: Final answer
    x = 964,755,895.30

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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.