Home / 715,392,802.80-1,072,711,290.60-305,986,402.80

Finding the Fourth Proportional to 715,392,802.80, 1,072,711,290.60 and 305,986,402.80

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Solution

The fourth proportional to 715,392,802.80, 1,072,711,290.60 and 305,986,402.80 is: 458,817,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,392,802.80 : 1,072,711,290.60 = 305,986,402.80 : x
  2. Step 2: Convert to fraction form
    715,392,802.80/1,072,711,290.60 = 305,986,402.80/x
  3. Step 3: Cross multiply
    715,392,802.80x = 1,072,711,290.60 × 305,986,402.80
  4. Step 4: Simplify right side
    715,392,802.80x = 328,235,069,053,639,488
  5. Step 5: Solve for x
    x = 328,235,069,053,639,488/715,392,802.80
  6. Step 6: Final answer
    x = 458,817,963.74

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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.