Home / 658,746,934.22-909,012,871.60-376,433,351.15

Finding the Fourth Proportional to 658,746,934.22, 909,012,871.60 and 376,433,351.15

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Solution

The fourth proportional to 658,746,934.22, 909,012,871.60 and 376,433,351.15 is: 519,444,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,746,934.22 : 909,012,871.60 = 376,433,351.15 : x
  2. Step 2: Convert to fraction form
    658,746,934.22/909,012,871.60 = 376,433,351.15/x
  3. Step 3: Cross multiply
    658,746,934.22x = 909,012,871.60 × 376,433,351.15
  4. Step 4: Simplify right side
    658,746,934.22x = 342,182,761,489,386,496
  5. Step 5: Solve for x
    x = 342,182,761,489,386,496/658,746,934.22
  6. Step 6: Final answer
    x = 519,444,939.65

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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.