Home / 817,241,025.60-1,225,861,538.40-543,724,891.20

Finding the Fourth Proportional to 817,241,025.60, 1,225,861,538.40 and 543,724,891.20

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Solution

The fourth proportional to 817,241,025.60, 1,225,861,538.40 and 543,724,891.20 is: 815,587,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,241,025.60 : 1,225,861,538.40 = 543,724,891.20 : x
  2. Step 2: Convert to fraction form
    817,241,025.60/1,225,861,538.40 = 543,724,891.20/x
  3. Step 3: Cross multiply
    817,241,025.60x = 1,225,861,538.40 × 543,724,891.20
  4. Step 4: Simplify right side
    817,241,025.60x = 666,531,431,592,804,736
  5. Step 5: Solve for x
    x = 666,531,431,592,804,736/817,241,025.60
  6. Step 6: Final answer
    x = 815,587,336.80

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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.