Home / 1,247,283,055.17-1,721,132,874.41-745,391,918.97

Finding the Fourth Proportional to 1,247,283,055.17, 1,721,132,874.41 and 745,391,918.97

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Solution

The fourth proportional to 1,247,283,055.17, 1,721,132,874.41 and 745,391,918.97 is: 1,028,570,484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,283,055.17 : 1,721,132,874.41 = 745,391,918.97 : x
  2. Step 2: Convert to fraction form
    1,247,283,055.17/1,721,132,874.41 = 745,391,918.97/x
  3. Step 3: Cross multiply
    1,247,283,055.17x = 1,721,132,874.41 × 745,391,918.97
  4. Step 4: Simplify right side
    1,247,283,055.17x = 1,282,918,536,055,095,040
  5. Step 5: Solve for x
    x = 1,282,918,536,055,095,040/1,247,283,055.17
  6. Step 6: Final answer
    x = 1,028,570,484.25

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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.