Home / 30,143,844,601.80-45,215,766,902.70-12,451,642,270.80

Finding the Fourth Proportional to 30,143,844,601.80, 45,215,766,902.70 and 12,451,642,270.80

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Solution

The fourth proportional to 30,143,844,601.80, 45,215,766,902.70 and 12,451,642,270.80 is: 18,677,463,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,143,844,601.80 : 45,215,766,902.70 = 12,451,642,270.80 : x
  2. Step 2: Convert to fraction form
    30,143,844,601.80/45,215,766,902.70 = 12,451,642,270.80/x
  3. Step 3: Cross multiply
    30,143,844,601.80x = 45,215,766,902.70 × 12,451,642,270.80
  4. Step 4: Simplify right side
    30,143,844,601.80x = 563,010,554,472,298,840,064
  5. Step 5: Solve for x
    x = 563,010,554,472,298,840,064/30,143,844,601.80
  6. Step 6: Final answer
    x = 18,677,463,406.20

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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.