Home / 268,628,139.40-402,942,209.10-247,129,054.60

Finding the Fourth Proportional to 268,628,139.40, 402,942,209.10 and 247,129,054.60

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Solution

The fourth proportional to 268,628,139.40, 402,942,209.10 and 247,129,054.60 is: 370,693,581.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,628,139.40 : 402,942,209.10 = 247,129,054.60 : x
  2. Step 2: Convert to fraction form
    268,628,139.40/402,942,209.10 = 247,129,054.60/x
  3. Step 3: Cross multiply
    268,628,139.40x = 402,942,209.10 × 247,129,054.60
  4. Step 4: Simplify right side
    268,628,139.40x = 99,578,727,193,318,528
  5. Step 5: Solve for x
    x = 99,578,727,193,318,528/268,628,139.40
  6. Step 6: Final answer
    x = 370,693,581.90

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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.