Home / 140,171,095.52-193,434,074.16-78,292,314.08

Finding the Fourth Proportional to 140,171,095.52, 193,434,074.16 and 78,292,314.08

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Solution

The fourth proportional to 140,171,095.52, 193,434,074.16 and 78,292,314.08 is: 108,042,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,171,095.52 : 193,434,074.16 = 78,292,314.08 : x
  2. Step 2: Convert to fraction form
    140,171,095.52/193,434,074.16 = 78,292,314.08/x
  3. Step 3: Cross multiply
    140,171,095.52x = 193,434,074.16 × 78,292,314.08
  4. Step 4: Simplify right side
    140,171,095.52x = 15,144,401,287,908,732
  5. Step 5: Solve for x
    x = 15,144,401,287,908,732/140,171,095.52
  6. Step 6: Final answer
    x = 108,042,255.30

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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.