Home / 80,571,023.64-120,807,041.40-31,329,479.07

Finding the Fourth Proportional to 80,571,023.64, 120,807,041.40 and 31,329,479.07

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Solution

The fourth proportional to 80,571,023.64, 120,807,041.40 and 31,329,479.07 is: 46,974,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,571,023.64 : 120,807,041.40 = 31,329,479.07 : x
  2. Step 2: Convert to fraction form
    80,571,023.64/120,807,041.40 = 31,329,479.07/x
  3. Step 3: Cross multiply
    80,571,023.64x = 120,807,041.40 × 31,329,479.07
  4. Step 4: Simplify right side
    80,571,023.64x = 3,784,821,675,257,012
  5. Step 5: Solve for x
    x = 3,784,821,675,257,012/80,571,023.64
  6. Step 6: Final answer
    x = 46,974,973.19

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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.