Home / 765,178,216,670.80-1,055,939,663,667.60-417,948,717,011.75

Finding the Fourth Proportional to 765,178,216,670.80, 1,055,939,663,667.60 and 417,948,717,011.75

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Solution

The fourth proportional to 765,178,216,670.80, 1,055,939,663,667.60 and 417,948,717,011.75 is: 576,765,801,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,178,216,670.80 : 1,055,939,663,667.60 = 417,948,717,011.75 : x
  2. Step 2: Convert to fraction form
    765,178,216,670.80/1,055,939,663,667.60 = 417,948,717,011.75/x
  3. Step 3: Cross multiply
    765,178,216,670.80x = 1,055,939,663,667.60 × 417,948,717,011.75
  4. Step 4: Simplify right side
    765,178,216,670.80x = 441,328,627,671,692,218,466,304
  5. Step 5: Solve for x
    x = 441,328,627,671,692,218,466,304/765,178,216,670.80
  6. Step 6: Final answer
    x = 576,765,801,817.86

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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.