Home / 517,103,640.95-776,078,475.83-513,072,562.55

Finding the Fourth Proportional to 517,103,640.95, 776,078,475.83 and 513,072,562.55

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Solution

The fourth proportional to 517,103,640.95, 776,078,475.83 and 513,072,562.55 is: 770,028,560.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,103,640.95 : 776,078,475.83 = 513,072,562.55 : x
  2. Step 2: Convert to fraction form
    517,103,640.95/776,078,475.83 = 513,072,562.55/x
  3. Step 3: Cross multiply
    517,103,640.95x = 776,078,475.83 × 513,072,562.55
  4. Step 4: Simplify right side
    517,103,640.95x = 398,184,572,331,431,040
  5. Step 5: Solve for x
    x = 398,184,572,331,431,040/517,103,640.95
  6. Step 6: Final answer
    x = 770,028,560.62

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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.