Home / 765,178,216,701.79-1,055,939,663,710.30-417,948,717,042.61

Finding the Fourth Proportional to 765,178,216,701.79, 1,055,939,663,710.30 and 417,948,717,042.61

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Solution

The fourth proportional to 765,178,216,701.79, 1,055,939,663,710.30 and 417,948,717,042.61 is: 576,765,801,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,178,216,701.79 : 1,055,939,663,710.30 = 417,948,717,042.61 : x
  2. Step 2: Convert to fraction form
    765,178,216,701.79/1,055,939,663,710.30 = 417,948,717,042.61/x
  3. Step 3: Cross multiply
    765,178,216,701.79x = 1,055,939,663,710.30 × 417,948,717,042.61
  4. Step 4: Simplify right side
    765,178,216,701.79x = 441,328,627,722,124,932,415,488
  5. Step 5: Solve for x
    x = 441,328,627,722,124,932,415,488/765,178,216,701.79
  6. Step 6: Final answer
    x = 576,765,801,860.41

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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.