Home / 20,223,727,821.20-30,335,591,731.80-12,387,311,411.60

Finding the Fourth Proportional to 20,223,727,821.20, 30,335,591,731.80 and 12,387,311,411.60

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Solution

The fourth proportional to 20,223,727,821.20, 30,335,591,731.80 and 12,387,311,411.60 is: 18,580,967,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223,727,821.20 : 30,335,591,731.80 = 12,387,311,411.60 : x
  2. Step 2: Convert to fraction form
    20,223,727,821.20/30,335,591,731.80 = 12,387,311,411.60/x
  3. Step 3: Cross multiply
    20,223,727,821.20x = 30,335,591,731.80 × 12,387,311,411.60
  4. Step 4: Simplify right side
    20,223,727,821.20x = 375,776,421,636,964,745,216
  5. Step 5: Solve for x
    x = 375,776,421,636,964,745,216/20,223,727,821.20
  6. Step 6: Final answer
    x = 18,580,967,117.40

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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.