Home / 20,155,431,710.40-30,178,728,007.20-20,155,431,710.40

Finding the Fourth Proportional to 20,155,431,710.40, 30,178,728,007.20 and 20,155,431,710.40

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Solution

The fourth proportional to 20,155,431,710.40, 30,178,728,007.20 and 20,155,431,710.40 is: 30,178,728,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,431,710.40 : 30,178,728,007.20 = 20,155,431,710.40 : x
  2. Step 2: Convert to fraction form
    20,155,431,710.40/30,178,728,007.20 = 20,155,431,710.40/x
  3. Step 3: Cross multiply
    20,155,431,710.40x = 30,178,728,007.20 × 20,155,431,710.40
  4. Step 4: Simplify right side
    20,155,431,710.40x = 608,265,291,455,855,591,424
  5. Step 5: Solve for x
    x = 608,265,291,455,855,591,424/20,155,431,710.40
  6. Step 6: Final answer
    x = 30,178,728,007.20

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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.