Home / 268,617,906.40-402,926,859.60-86,883,455.20

Finding the Fourth Proportional to 268,617,906.40, 402,926,859.60 and 86,883,455.20

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Solution

The fourth proportional to 268,617,906.40, 402,926,859.60 and 86,883,455.20 is: 130,325,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,617,906.40 : 402,926,859.60 = 86,883,455.20 : x
  2. Step 2: Convert to fraction form
    268,617,906.40/402,926,859.60 = 86,883,455.20/x
  3. Step 3: Cross multiply
    268,617,906.40x = 402,926,859.60 × 86,883,455.20
  4. Step 4: Simplify right side
    268,617,906.40x = 35,007,677,754,933,292
  5. Step 5: Solve for x
    x = 35,007,677,754,933,292/268,617,906.40
  6. Step 6: Final answer
    x = 130,325,182.80

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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.