Home / 112,944,852.64-155,875,414.80-66,549,573.28

Finding the Fourth Proportional to 112,944,852.64, 155,875,414.80 and 66,549,573.28

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Solution

The fourth proportional to 112,944,852.64, 155,875,414.80 and 66,549,573.28 is: 91,845,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,944,852.64 : 155,875,414.80 = 66,549,573.28 : x
  2. Step 2: Convert to fraction form
    112,944,852.64/155,875,414.80 = 66,549,573.28/x
  3. Step 3: Cross multiply
    112,944,852.64x = 155,875,414.80 × 66,549,573.28
  4. Step 4: Simplify right side
    112,944,852.64x = 10,373,442,339,782,998
  5. Step 5: Solve for x
    x = 10,373,442,339,782,998/112,944,852.64
  6. Step 6: Final answer
    x = 91,845,197.88

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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.