Home / 1,139,872,523.74-1,573,027,110.94-618,351,755.74

Finding the Fourth Proportional to 1,139,872,523.74, 1,573,027,110.94 and 618,351,755.74

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Solution

The fourth proportional to 1,139,872,523.74, 1,573,027,110.94 and 618,351,755.74 is: 853,327,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,872,523.74 : 1,573,027,110.94 = 618,351,755.74 : x
  2. Step 2: Convert to fraction form
    1,139,872,523.74/1,573,027,110.94 = 618,351,755.74/x
  3. Step 3: Cross multiply
    1,139,872,523.74x = 1,573,027,110.94 × 618,351,755.74
  4. Step 4: Simplify right side
    1,139,872,523.74x = 972,684,075,876,368,768
  5. Step 5: Solve for x
    x = 972,684,075,876,368,768/1,139,872,523.74
  6. Step 6: Final answer
    x = 853,327,065.63

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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.