Home / 151,448,709.80-208,999,275.30-81,834,090.44

Finding the Fourth Proportional to 151,448,709.80, 208,999,275.30 and 81,834,090.44

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Solution

The fourth proportional to 151,448,709.80, 208,999,275.30 and 81,834,090.44 is: 112,931,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,448,709.80 : 208,999,275.30 = 81,834,090.44 : x
  2. Step 2: Convert to fraction form
    151,448,709.80/208,999,275.30 = 81,834,090.44/x
  3. Step 3: Cross multiply
    151,448,709.80x = 208,999,275.30 × 81,834,090.44
  4. Step 4: Simplify right side
    151,448,709.80x = 17,103,265,596,794,658
  5. Step 5: Solve for x
    x = 17,103,265,596,794,658/151,448,709.80
  6. Step 6: Final answer
    x = 112,931,074.95

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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.