Home / 153,979,801.46-212,420,897.52-136,356,663.86

Finding the Fourth Proportional to 153,979,801.46, 212,420,897.52 and 136,356,663.86

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Solution

The fourth proportional to 153,979,801.46, 212,420,897.52 and 136,356,663.86 is: 188,109,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,979,801.46 : 212,420,897.52 = 136,356,663.86 : x
  2. Step 2: Convert to fraction form
    153,979,801.46/212,420,897.52 = 136,356,663.86/x
  3. Step 3: Cross multiply
    153,979,801.46x = 212,420,897.52 × 136,356,663.86
  4. Step 4: Simplify right side
    153,979,801.46x = 28,965,004,919,974,152
  5. Step 5: Solve for x
    x = 28,965,004,919,974,152/153,979,801.46
  6. Step 6: Final answer
    x = 188,109,119.80

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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.