Home / 86,960,022.66-120,006,322.20-47,803,449.78

Finding the Fourth Proportional to 86,960,022.66, 120,006,322.20 and 47,803,449.78

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Solution

The fourth proportional to 86,960,022.66, 120,006,322.20 and 47,803,449.78 is: 65,969,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960,022.66 : 120,006,322.20 = 47,803,449.78 : x
  2. Step 2: Convert to fraction form
    86,960,022.66/120,006,322.20 = 47,803,449.78/x
  3. Step 3: Cross multiply
    86,960,022.66x = 120,006,322.20 × 47,803,449.78
  4. Step 4: Simplify right side
    86,960,022.66x = 5,736,716,196,570,199
  5. Step 5: Solve for x
    x = 5,736,716,196,570,199/86,960,022.66
  6. Step 6: Final answer
    x = 65,969,580.29

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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.