Home / 112,126,688.40-168,190,032.60-84,916,909.20

Finding the Fourth Proportional to 112,126,688.40, 168,190,032.60 and 84,916,909.20

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Solution

The fourth proportional to 112,126,688.40, 168,190,032.60 and 84,916,909.20 is: 127,375,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126,688.40 : 168,190,032.60 = 84,916,909.20 : x
  2. Step 2: Convert to fraction form
    112,126,688.40/168,190,032.60 = 84,916,909.20/x
  3. Step 3: Cross multiply
    112,126,688.40x = 168,190,032.60 × 84,916,909.20
  4. Step 4: Simplify right side
    112,126,688.40x = 14,282,177,726,639,240
  5. Step 5: Solve for x
    x = 14,282,177,726,639,240/112,126,688.40
  6. Step 6: Final answer
    x = 127,375,363.80

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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.