Home / 5,138,857,079.34-7,706,790,221.00-1,990,369,461.56

Finding the Fourth Proportional to 5,138,857,079.34, 7,706,790,221.00 and 1,990,369,461.56

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Solution

The fourth proportional to 5,138,857,079.34, 7,706,790,221.00 and 1,990,369,461.56 is: 2,984,974,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,857,079.34 : 7,706,790,221.00 = 1,990,369,461.56 : x
  2. Step 2: Convert to fraction form
    5,138,857,079.34/7,706,790,221.00 = 1,990,369,461.56/x
  3. Step 3: Cross multiply
    5,138,857,079.34x = 7,706,790,221.00 × 1,990,369,461.56
  4. Step 4: Simplify right side
    5,138,857,079.34x = 15,339,359,902,479,157,248
  5. Step 5: Solve for x
    x = 15,339,359,902,479,157,248/5,138,857,079.34
  6. Step 6: Final answer
    x = 2,984,974,998.46

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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.