Home / 112,120,423.20-168,180,634.80-47,402,719.20

Finding the Fourth Proportional to 112,120,423.20, 168,180,634.80 and 47,402,719.20

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Solution

The fourth proportional to 112,120,423.20, 168,180,634.80 and 47,402,719.20 is: 71,104,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120,423.20 : 168,180,634.80 = 47,402,719.20 : x
  2. Step 2: Convert to fraction form
    112,120,423.20/168,180,634.80 = 47,402,719.20/x
  3. Step 3: Cross multiply
    112,120,423.20x = 168,180,634.80 × 47,402,719.20
  4. Step 4: Simplify right side
    112,120,423.20x = 7,972,219,406,302,149
  5. Step 5: Solve for x
    x = 7,972,219,406,302,149/112,120,423.20
  6. Step 6: Final answer
    x = 71,104,078.80

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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.