Home / 287,417,597.15-431,120,170.97-80,150,477.27

Finding the Fourth Proportional to 287,417,597.15, 431,120,170.97 and 80,150,477.27

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Solution

The fourth proportional to 287,417,597.15, 431,120,170.97 and 80,150,477.27 is: 120,223,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,417,597.15 : 431,120,170.97 = 80,150,477.27 : x
  2. Step 2: Convert to fraction form
    287,417,597.15/431,120,170.97 = 80,150,477.27/x
  3. Step 3: Cross multiply
    287,417,597.15x = 431,120,170.97 × 80,150,477.27
  4. Step 4: Simplify right side
    287,417,597.15x = 34,554,487,461,939,736
  5. Step 5: Solve for x
    x = 34,554,487,461,939,736/287,417,597.15
  6. Step 6: Final answer
    x = 120,223,980.04

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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.