Home / 67,807,780,001.40-101,711,670,002.10-20,643,879,286.20

Finding the Fourth Proportional to 67,807,780,001.40, 101,711,670,002.10 and 20,643,879,286.20

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Solution

The fourth proportional to 67,807,780,001.40, 101,711,670,002.10 and 20,643,879,286.20 is: 30,965,818,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,807,780,001.40 : 101,711,670,002.10 = 20,643,879,286.20 : x
  2. Step 2: Convert to fraction form
    67,807,780,001.40/101,711,670,002.10 = 20,643,879,286.20/x
  3. Step 3: Cross multiply
    67,807,780,001.40x = 101,711,670,002.10 × 20,643,879,286.20
  4. Step 4: Simplify right side
    67,807,780,001.40x = 2,099,723,437,521,162,207,232
  5. Step 5: Solve for x
    x = 2,099,723,437,521,162,207,232/67,807,780,001.40
  6. Step 6: Final answer
    x = 30,965,818,929.30

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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.