Home / 513,829,665.60-770,520,549.60-207,019,809.60

Finding the Fourth Proportional to 513,829,665.60, 770,520,549.60 and 207,019,809.60

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Solution

The fourth proportional to 513,829,665.60, 770,520,549.60 and 207,019,809.60 is: 310,439,486.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,829,665.60 : 770,520,549.60 = 207,019,809.60 : x
  2. Step 2: Convert to fraction form
    513,829,665.60/770,520,549.60 = 207,019,809.60/x
  3. Step 3: Cross multiply
    513,829,665.60x = 770,520,549.60 × 207,019,809.60
  4. Step 4: Simplify right side
    513,829,665.60x = 159,513,017,471,079,360
  5. Step 5: Solve for x
    x = 159,513,017,471,079,360/513,829,665.60
  6. Step 6: Final answer
    x = 310,439,486.37

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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.