Home / 147,512,468.70-221,268,703.05-79,488,020.70

Finding the Fourth Proportional to 147,512,468.70, 221,268,703.05 and 79,488,020.70

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Solution

The fourth proportional to 147,512,468.70, 221,268,703.05 and 79,488,020.70 is: 119,232,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,512,468.70 : 221,268,703.05 = 79,488,020.70 : x
  2. Step 2: Convert to fraction form
    147,512,468.70/221,268,703.05 = 79,488,020.70/x
  3. Step 3: Cross multiply
    147,512,468.70x = 221,268,703.05 × 79,488,020.70
  4. Step 4: Simplify right side
    147,512,468.70x = 17,588,211,248,300,554
  5. Step 5: Solve for x
    x = 17,588,211,248,300,554/147,512,468.70
  6. Step 6: Final answer
    x = 119,232,031.05

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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.