Home / 124,497,986.40-186,746,979.60-81,499,816.80

Finding the Fourth Proportional to 124,497,986.40, 186,746,979.60 and 81,499,816.80

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Solution

The fourth proportional to 124,497,986.40, 186,746,979.60 and 81,499,816.80 is: 122,249,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,497,986.40 : 186,746,979.60 = 81,499,816.80 : x
  2. Step 2: Convert to fraction form
    124,497,986.40/186,746,979.60 = 81,499,816.80/x
  3. Step 3: Cross multiply
    124,497,986.40x = 186,746,979.60 × 81,499,816.80
  4. Step 4: Simplify right side
    124,497,986.40x = 15,219,844,625,353,336
  5. Step 5: Solve for x
    x = 15,219,844,625,353,336/124,497,986.40
  6. Step 6: Final answer
    x = 122,249,725.20

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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.