Home / 1,276,787,731.69-1,761,748,860.29-740,816,526.43

Finding the Fourth Proportional to 1,276,787,731.69, 1,761,748,860.29 and 740,816,526.43

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Solution

The fourth proportional to 1,276,787,731.69, 1,761,748,860.29 and 740,816,526.43 is: 1,022,200,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,787,731.69 : 1,761,748,860.29 = 740,816,526.43 : x
  2. Step 2: Convert to fraction form
    1,276,787,731.69/1,761,748,860.29 = 740,816,526.43/x
  3. Step 3: Cross multiply
    1,276,787,731.69x = 1,761,748,860.29 × 740,816,526.43
  4. Step 4: Simplify right side
    1,276,787,731.69x = 1,305,132,671,122,049,024
  5. Step 5: Solve for x
    x = 1,305,132,671,122,049,024/1,276,787,731.69
  6. Step 6: Final answer
    x = 1,022,200,197.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.