Home / 124,224,145.80-186,336,218.70-78,986,488.20

Finding the Fourth Proportional to 124,224,145.80, 186,336,218.70 and 78,986,488.20

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Solution

The fourth proportional to 124,224,145.80, 186,336,218.70 and 78,986,488.20 is: 118,479,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,224,145.80 : 186,336,218.70 = 78,986,488.20 : x
  2. Step 2: Convert to fraction form
    124,224,145.80/186,336,218.70 = 78,986,488.20/x
  3. Step 3: Cross multiply
    124,224,145.80x = 186,336,218.70 × 78,986,488.20
  4. Step 4: Simplify right side
    124,224,145.80x = 14,718,043,539,580,168
  5. Step 5: Solve for x
    x = 14,718,043,539,580,168/124,224,145.80
  6. Step 6: Final answer
    x = 118,479,732.30

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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.