Home / 2,781,428,125.20-4,172,142,187.80-711,040,277.40

Finding the Fourth Proportional to 2,781,428,125.20, 4,172,142,187.80 and 711,040,277.40

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Solution

The fourth proportional to 2,781,428,125.20, 4,172,142,187.80 and 711,040,277.40 is: 1,066,560,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,428,125.20 : 4,172,142,187.80 = 711,040,277.40 : x
  2. Step 2: Convert to fraction form
    2,781,428,125.20/4,172,142,187.80 = 711,040,277.40/x
  3. Step 3: Cross multiply
    2,781,428,125.20x = 4,172,142,187.80 × 711,040,277.40
  4. Step 4: Simplify right side
    2,781,428,125.20x = 2,966,561,138,565,554,688
  5. Step 5: Solve for x
    x = 2,966,561,138,565,554,688/2,781,428,125.20
  6. Step 6: Final answer
    x = 1,066,560,416.10

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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.