Home / 78,028,291.80-117,007,008.30-29,490,013.80

Finding the Fourth Proportional to 78,028,291.80, 117,007,008.30 and 29,490,013.80

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Solution

The fourth proportional to 78,028,291.80, 117,007,008.30 and 29,490,013.80 is: 44,221,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028,291.80 : 117,007,008.30 = 29,490,013.80 : x
  2. Step 2: Convert to fraction form
    78,028,291.80/117,007,008.30 = 29,490,013.80/x
  3. Step 3: Cross multiply
    78,028,291.80x = 117,007,008.30 × 29,490,013.80
  4. Step 4: Simplify right side
    78,028,291.80x = 3,450,538,289,463,714.50
  5. Step 5: Solve for x
    x = 3,450,538,289,463,714.50/78,028,291.80
  6. Step 6: Final answer
    x = 44,221,630.51

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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.