Home / 804,537,621.40-1,206,806,432.10-287,551,816.60

Finding the Fourth Proportional to 804,537,621.40, 1,206,806,432.10 and 287,551,816.60

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Solution

The fourth proportional to 804,537,621.40, 1,206,806,432.10 and 287,551,816.60 is: 431,327,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,537,621.40 : 1,206,806,432.10 = 287,551,816.60 : x
  2. Step 2: Convert to fraction form
    804,537,621.40/1,206,806,432.10 = 287,551,816.60/x
  3. Step 3: Cross multiply
    804,537,621.40x = 1,206,806,432.10 × 287,551,816.60
  4. Step 4: Simplify right side
    804,537,621.40x = 347,019,381,834,919,552
  5. Step 5: Solve for x
    x = 347,019,381,834,919,552/804,537,621.40
  6. Step 6: Final answer
    x = 431,327,724.90

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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.