Home / 512,631,925.74-768,952,709.76-124,458,165.90

Finding the Fourth Proportional to 512,631,925.74, 768,952,709.76 and 124,458,165.90

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Solution

The fourth proportional to 512,631,925.74, 768,952,709.76 and 124,458,165.90 is: 186,688,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,631,925.74 : 768,952,709.76 = 124,458,165.90 : x
  2. Step 2: Convert to fraction form
    512,631,925.74/768,952,709.76 = 124,458,165.90/x
  3. Step 3: Cross multiply
    512,631,925.74x = 768,952,709.76 × 124,458,165.90
  4. Step 4: Simplify right side
    512,631,925.74x = 95,702,443,920,564,640
  5. Step 5: Solve for x
    x = 95,702,443,920,564,640/512,631,925.74
  6. Step 6: Final answer
    x = 186,688,419.34

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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.