Home / 112,415,999.20-168,623,998.80-86,906,831.20

Finding the Fourth Proportional to 112,415,999.20, 168,623,998.80 and 86,906,831.20

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Solution

The fourth proportional to 112,415,999.20, 168,623,998.80 and 86,906,831.20 is: 130,360,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415,999.20 : 168,623,998.80 = 86,906,831.20 : x
  2. Step 2: Convert to fraction form
    112,415,999.20/168,623,998.80 = 86,906,831.20/x
  3. Step 3: Cross multiply
    112,415,999.20x = 168,623,998.80 × 86,906,831.20
  4. Step 4: Simplify right side
    112,415,999.20x = 14,654,577,399,980,604
  5. Step 5: Solve for x
    x = 14,654,577,399,980,604/112,415,999.20
  6. Step 6: Final answer
    x = 130,360,246.80

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1.5x scale

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.