Home / 517,103,639.70-776,078,473.95-513,072,561.30

Finding the Fourth Proportional to 517,103,639.70, 776,078,473.95 and 513,072,561.30

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Solution

The fourth proportional to 517,103,639.70, 776,078,473.95 and 513,072,561.30 is: 770,028,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,103,639.70 : 776,078,473.95 = 513,072,561.30 : x
  2. Step 2: Convert to fraction form
    517,103,639.70/776,078,473.95 = 513,072,561.30/x
  3. Step 3: Cross multiply
    517,103,639.70x = 776,078,473.95 × 513,072,561.30
  4. Step 4: Simplify right side
    517,103,639.70x = 398,184,570,399,321,856
  5. Step 5: Solve for x
    x = 398,184,570,399,321,856/517,103,639.70
  6. Step 6: Final answer
    x = 770,028,558.74

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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.