Home / 153,983,535.44-212,444,965.86-87,856,528.64

Finding the Fourth Proportional to 153,983,535.44, 212,444,965.86 and 87,856,528.64

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Solution

The fourth proportional to 153,983,535.44, 212,444,965.86 and 87,856,528.64 is: 121,212,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,983,535.44 : 212,444,965.86 = 87,856,528.64 : x
  2. Step 2: Convert to fraction form
    153,983,535.44/212,444,965.86 = 87,856,528.64/x
  3. Step 3: Cross multiply
    153,983,535.44x = 212,444,965.86 × 87,856,528.64
  4. Step 4: Simplify right side
    153,983,535.44x = 18,664,677,227,502,912
  5. Step 5: Solve for x
    x = 18,664,677,227,502,912/153,983,535.44
  6. Step 6: Final answer
    x = 121,212,161.90

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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.