Home / 819,182,138.97-1,130,778,774.86-536,942,768.30

Finding the Fourth Proportional to 819,182,138.97, 1,130,778,774.86 and 536,942,768.30

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Solution

The fourth proportional to 819,182,138.97, 1,130,778,774.86 and 536,942,768.30 is: 741,182,524.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,182,138.97 : 1,130,778,774.86 = 536,942,768.30 : x
  2. Step 2: Convert to fraction form
    819,182,138.97/1,130,778,774.86 = 536,942,768.30/x
  3. Step 3: Cross multiply
    819,182,138.97x = 1,130,778,774.86 × 536,942,768.30
  4. Step 4: Simplify right side
    819,182,138.97x = 607,163,485,704,112,768
  5. Step 5: Solve for x
    x = 607,163,485,704,112,768/819,182,138.97
  6. Step 6: Final answer
    x = 741,182,524.40

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Double scale
Find fourth proportional to 819,182,139.97, 1,130,778,776.24 and 536,942,769.30
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1.5x scale

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.