Home / 15,210,838,154.45-20,966,702,919.72-11,990,496,515.06

Finding the Fourth Proportional to 15,210,838,154.45, 20,966,702,919.72 and 11,990,496,515.06

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Solution

The fourth proportional to 15,210,838,154.45, 20,966,702,919.72 and 11,990,496,515.06 is: 16,527,766,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,838,154.45 : 20,966,702,919.72 = 11,990,496,515.06 : x
  2. Step 2: Convert to fraction form
    15,210,838,154.45/20,966,702,919.72 = 11,990,496,515.06/x
  3. Step 3: Cross multiply
    15,210,838,154.45x = 20,966,702,919.72 × 11,990,496,515.06
  4. Step 4: Simplify right side
    15,210,838,154.45x = 251,401,178,291,200,983,040
  5. Step 5: Solve for x
    x = 251,401,178,291,200,983,040/15,210,838,154.45
  6. Step 6: Final answer
    x = 16,527,766,303.11

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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.