Home / 813,583,623.40-1,220,375,435.10-724,402,234.60

Finding the Fourth Proportional to 813,583,623.40, 1,220,375,435.10 and 724,402,234.60

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Solution

The fourth proportional to 813,583,623.40, 1,220,375,435.10 and 724,402,234.60 is: 1,086,603,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,583,623.40 : 1,220,375,435.10 = 724,402,234.60 : x
  2. Step 2: Convert to fraction form
    813,583,623.40/1,220,375,435.10 = 724,402,234.60/x
  3. Step 3: Cross multiply
    813,583,623.40x = 1,220,375,435.10 × 724,402,234.60
  4. Step 4: Simplify right side
    813,583,623.40x = 884,042,692,237,387,264
  5. Step 5: Solve for x
    x = 884,042,692,237,387,264/813,583,623.40
  6. Step 6: Final answer
    x = 1,086,603,351.90

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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.