Home / 147,672,086.40-221,508,129.60-87,205,910.40

Finding the Fourth Proportional to 147,672,086.40, 221,508,129.60 and 87,205,910.40

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Solution

The fourth proportional to 147,672,086.40, 221,508,129.60 and 87,205,910.40 is: 130,808,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,672,086.40 : 221,508,129.60 = 87,205,910.40 : x
  2. Step 2: Convert to fraction form
    147,672,086.40/221,508,129.60 = 87,205,910.40/x
  3. Step 3: Cross multiply
    147,672,086.40x = 221,508,129.60 × 87,205,910.40
  4. Step 4: Simplify right side
    147,672,086.40x = 19,316,818,102,769,188
  5. Step 5: Solve for x
    x = 19,316,818,102,769,188/147,672,086.40
  6. Step 6: Final answer
    x = 130,808,865.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.