Home / 20,189,513,421.45-30,257,199,852.12-15,713,013,545.59

Finding the Fourth Proportional to 20,189,513,421.45, 30,257,199,852.12 and 15,713,013,545.59

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Solution

The fourth proportional to 20,189,513,421.45, 30,257,199,852.12 and 15,713,013,545.59 is: 23,548,452,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189,513,421.45 : 30,257,199,852.12 = 15,713,013,545.59 : x
  2. Step 2: Convert to fraction form
    20,189,513,421.45/30,257,199,852.12 = 15,713,013,545.59/x
  3. Step 3: Cross multiply
    20,189,513,421.45x = 30,257,199,852.12 × 15,713,013,545.59
  4. Step 4: Simplify right side
    20,189,513,421.45x = 475,431,791,127,985,324,032
  5. Step 5: Solve for x
    x = 475,431,791,127,985,324,032/20,189,513,421.45
  6. Step 6: Final answer
    x = 23,548,452,169.38

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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.