Home / 649,269,431.40-974,513,007.90-342,781,501.80

Finding the Fourth Proportional to 649,269,431.40, 974,513,007.90 and 342,781,501.80

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Solution

The fourth proportional to 649,269,431.40, 974,513,007.90 and 342,781,501.80 is: 514,493,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,269,431.40 : 974,513,007.90 = 342,781,501.80 : x
  2. Step 2: Convert to fraction form
    649,269,431.40/974,513,007.90 = 342,781,501.80/x
  3. Step 3: Cross multiply
    649,269,431.40x = 974,513,007.90 × 342,781,501.80
  4. Step 4: Simplify right side
    649,269,431.40x = 334,045,032,371,597,248
  5. Step 5: Solve for x
    x = 334,045,032,371,597,248/649,269,431.40
  6. Step 6: Final answer
    x = 514,493,700.48

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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.