Home / 78,168,259.20-117,252,388.80-37,857,475.20

Finding the Fourth Proportional to 78,168,259.20, 117,252,388.80 and 37,857,475.20

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Solution

The fourth proportional to 78,168,259.20, 117,252,388.80 and 37,857,475.20 is: 56,786,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,168,259.20 : 117,252,388.80 = 37,857,475.20 : x
  2. Step 2: Convert to fraction form
    78,168,259.20/117,252,388.80 = 37,857,475.20/x
  3. Step 3: Cross multiply
    78,168,259.20x = 117,252,388.80 × 37,857,475.20
  4. Step 4: Simplify right side
    78,168,259.20x = 4,438,879,401,136,758
  5. Step 5: Solve for x
    x = 4,438,879,401,136,758/78,168,259.20
  6. Step 6: Final answer
    x = 56,786,212.80

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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.