Home / 128,884,502.92-177,864,520.14-70,151,415.04

Finding the Fourth Proportional to 128,884,502.92, 177,864,520.14 and 70,151,415.04

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Solution

The fourth proportional to 128,884,502.92, 177,864,520.14 and 70,151,415.04 is: 96,811,078.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884,502.92 : 177,864,520.14 = 70,151,415.04 : x
  2. Step 2: Convert to fraction form
    128,884,502.92/177,864,520.14 = 70,151,415.04/x
  3. Step 3: Cross multiply
    128,884,502.92x = 177,864,520.14 × 70,151,415.04
  4. Step 4: Simplify right side
    128,884,502.92x = 12,477,447,773,231,580
  5. Step 5: Solve for x
    x = 12,477,447,773,231,580/128,884,502.92
  6. Step 6: Final answer
    x = 96,811,078.84

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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.