Home / 42,109,834.80-63,164,752.20-10,197,130.80

Finding the Fourth Proportional to 42,109,834.80, 63,164,752.20 and 10,197,130.80

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Solution

The fourth proportional to 42,109,834.80, 63,164,752.20 and 10,197,130.80 is: 15,295,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,109,834.80 : 63,164,752.20 = 10,197,130.80 : x
  2. Step 2: Convert to fraction form
    42,109,834.80/63,164,752.20 = 10,197,130.80/x
  3. Step 3: Cross multiply
    42,109,834.80x = 63,164,752.20 × 10,197,130.80
  4. Step 4: Simplify right side
    42,109,834.80x = 644,099,240,132,987.88
  5. Step 5: Solve for x
    x = 644,099,240,132,987.88/42,109,834.80
  6. Step 6: Final answer
    x = 15,295,696.20

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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.