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Finding the Fourth Proportional to 978,250,846.52, 1,349,996,872.70 and 532,216,745.48

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Solution

The fourth proportional to 978,250,846.52, 1,349,996,872.70 and 532,216,745.48 is: 734,464,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,250,846.52 : 1,349,996,872.70 = 532,216,745.48 : x
  2. Step 2: Convert to fraction form
    978,250,846.52/1,349,996,872.70 = 532,216,745.48/x
  3. Step 3: Cross multiply
    978,250,846.52x = 1,349,996,872.70 × 532,216,745.48
  4. Step 4: Simplify right side
    978,250,846.52x = 718,490,942,001,277,440
  5. Step 5: Solve for x
    x = 718,490,942,001,277,440/978,250,846.52
  6. Step 6: Final answer
    x = 734,464,932.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.