Home / 649,269,362.40-974,512,904.40-342,781,432.80

Finding the Fourth Proportional to 649,269,362.40, 974,512,904.40 and 342,781,432.80

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Solution

The fourth proportional to 649,269,362.40, 974,512,904.40 and 342,781,432.80 is: 514,493,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,269,362.40 : 974,512,904.40 = 342,781,432.80 : x
  2. Step 2: Convert to fraction form
    649,269,362.40/974,512,904.40 = 342,781,432.80/x
  3. Step 3: Cross multiply
    649,269,362.40x = 974,512,904.40 × 342,781,432.80
  4. Step 4: Simplify right side
    649,269,362.40x = 334,044,929,652,321,408
  5. Step 5: Solve for x
    x = 334,044,929,652,321,408/649,269,362.40
  6. Step 6: Final answer
    x = 514,493,596.95

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Double scale
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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.