Home / 153,983,533.70-212,444,963.45-87,856,526.90

Finding the Fourth Proportional to 153,983,533.70, 212,444,963.45 and 87,856,526.90

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Solution

The fourth proportional to 153,983,533.70, 212,444,963.45 and 87,856,526.90 is: 121,212,159.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,983,533.70 : 212,444,963.45 = 87,856,526.90 : x
  2. Step 2: Convert to fraction form
    153,983,533.70/212,444,963.45 = 87,856,526.90/x
  3. Step 3: Cross multiply
    153,983,533.70x = 212,444,963.45 × 87,856,526.90
  4. Step 4: Simplify right side
    153,983,533.70x = 18,664,676,644,612,932
  5. Step 5: Solve for x
    x = 18,664,676,644,612,932/153,983,533.70
  6. Step 6: Final answer
    x = 121,212,159.49

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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.