Home / 684,298,895.10-1,024,432,803.45-644,436,008.70

Finding the Fourth Proportional to 684,298,895.10, 1,024,432,803.45 and 644,436,008.70

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Solution

The fourth proportional to 684,298,895.10, 1,024,432,803.45 and 644,436,008.70 is: 964,755,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,298,895.10 : 1,024,432,803.45 = 644,436,008.70 : x
  2. Step 2: Convert to fraction form
    684,298,895.10/1,024,432,803.45 = 644,436,008.70/x
  3. Step 3: Cross multiply
    684,298,895.10x = 1,024,432,803.45 × 644,436,008.70
  4. Step 4: Simplify right side
    684,298,895.10x = 660,181,387,036,669,696
  5. Step 5: Solve for x
    x = 660,181,387,036,669,696/684,298,895.10
  6. Step 6: Final answer
    x = 964,755,886.30

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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.