Home / 82,827,079,205.40-124,240,618,808.10-78,582,353,650.20

Finding the Fourth Proportional to 82,827,079,205.40, 124,240,618,808.10 and 78,582,353,650.20

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Solution

The fourth proportional to 82,827,079,205.40, 124,240,618,808.10 and 78,582,353,650.20 is: 117,873,530,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,827,079,205.40 : 124,240,618,808.10 = 78,582,353,650.20 : x
  2. Step 2: Convert to fraction form
    82,827,079,205.40/124,240,618,808.10 = 78,582,353,650.20/x
  3. Step 3: Cross multiply
    82,827,079,205.40x = 124,240,618,808.10 × 78,582,353,650.20
  4. Step 4: Simplify right side
    82,827,079,205.40x = 9,763,120,244,897,804,713,984
  5. Step 5: Solve for x
    x = 9,763,120,244,897,804,713,984/82,827,079,205.40
  6. Step 6: Final answer
    x = 117,873,530,475.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.