Home / 1,098,715,559-1,515,852,479.22-680,875,387.16

Finding the Fourth Proportional to 1,098,715,559, 1,515,852,479.22 and 680,875,387.16

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Solution

The fourth proportional to 1,098,715,559, 1,515,852,479.22 and 680,875,387.16 is: 939,375,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,715,559 : 1,515,852,479.22 = 680,875,387.16 : x
  2. Step 2: Convert to fraction form
    1,098,715,559/1,515,852,479.22 = 680,875,387.16/x
  3. Step 3: Cross multiply
    1,098,715,559x = 1,515,852,479.22 × 680,875,387.16
  4. Step 4: Simplify right side
    1,098,715,559x = 1,032,106,643,666,363,264
  5. Step 5: Solve for x
    x = 1,032,106,643,666,363,264/1,098,715,559
  6. Step 6: Final answer
    x = 939,375,651.15

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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.