Home / 765,178,216,664.40-1,055,939,663,658.70-417,948,717,005.22

Finding the Fourth Proportional to 765,178,216,664.40, 1,055,939,663,658.70 and 417,948,717,005.22

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Solution

The fourth proportional to 765,178,216,664.40, 1,055,939,663,658.70 and 417,948,717,005.22 is: 576,765,801,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,178,216,664.40 : 1,055,939,663,658.70 = 417,948,717,005.22 : x
  2. Step 2: Convert to fraction form
    765,178,216,664.40/1,055,939,663,658.70 = 417,948,717,005.22/x
  3. Step 3: Cross multiply
    765,178,216,664.40x = 1,055,939,663,658.70 × 417,948,717,005.22
  4. Step 4: Simplify right side
    765,178,216,664.40x = 441,328,627,661,077,139,685,376
  5. Step 5: Solve for x
    x = 441,328,627,661,077,139,685,376/765,178,216,664.40
  6. Step 6: Final answer
    x = 576,765,801,808.81

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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.