Home / 144,344,031.20-199,197,348-78,266,758.40

Finding the Fourth Proportional to 144,344,031.20, 199,197,348 and 78,266,758.40

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Solution

The fourth proportional to 144,344,031.20, 199,197,348 and 78,266,758.40 is: 108,009,528.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,344,031.20 : 199,197,348 = 78,266,758.40 : x
  2. Step 2: Convert to fraction form
    144,344,031.20/199,197,348 = 78,266,758.40/x
  3. Step 3: Cross multiply
    144,344,031.20x = 199,197,348 × 78,266,758.40
  4. Step 4: Simplify right side
    144,344,031.20x = 15,590,530,709,836,724
  5. Step 5: Solve for x
    x = 15,590,530,709,836,724/144,344,031.20
  6. Step 6: Final answer
    x = 108,009,528.21

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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.