Home / 75,179,952.80-112,769,929.20-66,222,000.80

Finding the Fourth Proportional to 75,179,952.80, 112,769,929.20 and 66,222,000.80

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Solution

The fourth proportional to 75,179,952.80, 112,769,929.20 and 66,222,000.80 is: 99,333,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,179,952.80 : 112,769,929.20 = 66,222,000.80 : x
  2. Step 2: Convert to fraction form
    75,179,952.80/112,769,929.20 = 66,222,000.80/x
  3. Step 3: Cross multiply
    75,179,952.80x = 112,769,929.20 × 66,222,000.80
  4. Step 4: Simplify right side
    75,179,952.80x = 7,467,850,341,698,343
  5. Step 5: Solve for x
    x = 7,467,850,341,698,343/75,179,952.80
  6. Step 6: Final answer
    x = 99,333,001.20

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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.