Home / 67,807,726,508.40-101,711,589,762.60-20,643,825,793.20

Finding the Fourth Proportional to 67,807,726,508.40, 101,711,589,762.60 and 20,643,825,793.20

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Solution

The fourth proportional to 67,807,726,508.40, 101,711,589,762.60 and 20,643,825,793.20 is: 30,965,738,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,807,726,508.40 : 101,711,589,762.60 = 20,643,825,793.20 : x
  2. Step 2: Convert to fraction form
    67,807,726,508.40/101,711,589,762.60 = 20,643,825,793.20/x
  3. Step 3: Cross multiply
    67,807,726,508.40x = 101,711,589,762.60 × 20,643,825,793.20
  4. Step 4: Simplify right side
    67,807,726,508.40x = 2,099,716,340,208,539,271,168
  5. Step 5: Solve for x
    x = 2,099,716,340,208,539,271,168/67,807,726,508.40
  6. Step 6: Final answer
    x = 30,965,738,689.80

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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.