Home / 153,897,374.92-212,374,229.64-87,816,677.44

Finding the Fourth Proportional to 153,897,374.92, 212,374,229.64 and 87,816,677.44

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Solution

The fourth proportional to 153,897,374.92, 212,374,229.64 and 87,816,677.44 is: 121,184,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,897,374.92 : 212,374,229.64 = 87,816,677.44 : x
  2. Step 2: Convert to fraction form
    153,897,374.92/212,374,229.64 = 87,816,677.44/x
  3. Step 3: Cross multiply
    153,897,374.92x = 212,374,229.64 × 87,816,677.44
  4. Step 4: Simplify right side
    153,897,374.92x = 18,649,999,220,864,364
  5. Step 5: Solve for x
    x = 18,649,999,220,864,364/153,897,374.92
  6. Step 6: Final answer
    x = 121,184,648.08

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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.