Home / 15,210,838,147.95-20,966,702,910.75-11,990,496,508.56

Finding the Fourth Proportional to 15,210,838,147.95, 20,966,702,910.75 and 11,990,496,508.56

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Solution

The fourth proportional to 15,210,838,147.95, 20,966,702,910.75 and 11,990,496,508.56 is: 16,527,766,294.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,838,147.95 : 20,966,702,910.75 = 11,990,496,508.56 : x
  2. Step 2: Convert to fraction form
    15,210,838,147.95/20,966,702,910.75 = 11,990,496,508.56/x
  3. Step 3: Cross multiply
    15,210,838,147.95x = 20,966,702,910.75 × 11,990,496,508.56
  4. Step 4: Simplify right side
    15,210,838,147.95x = 251,401,178,047,362,662,400
  5. Step 5: Solve for x
    x = 251,401,178,047,362,662,400/15,210,838,147.95
  6. Step 6: Final answer
    x = 16,527,766,294.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.