Home / 889,146,156.91-1,227,023,138.64-487,196,033.17

Finding the Fourth Proportional to 889,146,156.91, 1,227,023,138.64 and 487,196,033.17

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Solution

The fourth proportional to 889,146,156.91, 1,227,023,138.64 and 487,196,033.17 is: 672,331,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,146,156.91 : 1,227,023,138.64 = 487,196,033.17 : x
  2. Step 2: Convert to fraction form
    889,146,156.91/1,227,023,138.64 = 487,196,033.17/x
  3. Step 3: Cross multiply
    889,146,156.91x = 1,227,023,138.64 × 487,196,033.17
  4. Step 4: Simplify right side
    889,146,156.91x = 597,800,805,753,211,008
  5. Step 5: Solve for x
    x = 597,800,805,753,211,008/889,146,156.91
  6. Step 6: Final answer
    x = 672,331,315.96

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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.