Home / 386,151,806.20-579,241,706.10-113,550,129.40

Finding the Fourth Proportional to 386,151,806.20, 579,241,706.10 and 113,550,129.40

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Solution

The fourth proportional to 386,151,806.20, 579,241,706.10 and 113,550,129.40 is: 170,329,309.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,151,806.20 : 579,241,706.10 = 113,550,129.40 : x
  2. Step 2: Convert to fraction form
    386,151,806.20/579,241,706.10 = 113,550,129.40/x
  3. Step 3: Cross multiply
    386,151,806.20x = 579,241,706.10 × 113,550,129.40
  4. Step 4: Simplify right side
    386,151,806.20x = 65,772,970,681,531,776
  5. Step 5: Solve for x
    x = 65,772,970,681,531,776/386,151,806.20
  6. Step 6: Final answer
    x = 170,329,309.94

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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.