Home / 20,785,378,225.20-31,178,067,337.80-16,867,170,020.40

Finding the Fourth Proportional to 20,785,378,225.20, 31,178,067,337.80 and 16,867,170,020.40

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Solution

The fourth proportional to 20,785,378,225.20, 31,178,067,337.80 and 16,867,170,020.40 is: 25,300,755,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,378,225.20 : 31,178,067,337.80 = 16,867,170,020.40 : x
  2. Step 2: Convert to fraction form
    20,785,378,225.20/31,178,067,337.80 = 16,867,170,020.40/x
  3. Step 3: Cross multiply
    20,785,378,225.20x = 31,178,067,337.80 × 16,867,170,020.40
  4. Step 4: Simplify right side
    20,785,378,225.20x = 525,885,762,694,152,585,216
  5. Step 5: Solve for x
    x = 525,885,762,694,152,585,216/20,785,378,225.20
  6. Step 6: Final answer
    x = 25,300,755,030.60

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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.