Home / 100,920,690.90-151,381,036.35-82,984,557.15

Finding the Fourth Proportional to 100,920,690.90, 151,381,036.35 and 82,984,557.15

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Solution

The fourth proportional to 100,920,690.90, 151,381,036.35 and 82,984,557.15 is: 124,476,835.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,920,690.90 : 151,381,036.35 = 82,984,557.15 : x
  2. Step 2: Convert to fraction form
    100,920,690.90/151,381,036.35 = 82,984,557.15/x
  3. Step 3: Cross multiply
    100,920,690.90x = 151,381,036.35 × 82,984,557.15
  4. Step 4: Simplify right side
    100,920,690.90x = 12,562,288,262,412,802
  5. Step 5: Solve for x
    x = 12,562,288,262,412,802/100,920,690.90
  6. Step 6: Final answer
    x = 124,476,835.73

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Double scale
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Similar ratio
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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.