Home / 698,156,990.60-1,047,151,505.10-289,170,494.60

Finding the Fourth Proportional to 698,156,990.60, 1,047,151,505.10 and 289,170,494.60

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Solution

The fourth proportional to 698,156,990.60, 1,047,151,505.10 and 289,170,494.60 is: 433,720,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,990.60 : 1,047,151,505.10 = 289,170,494.60 : x
  2. Step 2: Convert to fraction form
    698,156,990.60/1,047,151,505.10 = 289,170,494.60/x
  3. Step 3: Cross multiply
    698,156,990.60x = 1,047,151,505.10 × 289,170,494.60
  4. Step 4: Simplify right side
    698,156,990.60x = 302,805,318,650,901,440
  5. Step 5: Solve for x
    x = 302,805,318,650,901,440/698,156,990.60
  6. Step 6: Final answer
    x = 433,720,957.79

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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.