Home / 75,668,197.90-113,502,296.85-21,089,207.20

Finding the Fourth Proportional to 75,668,197.90, 113,502,296.85 and 21,089,207.20

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Solution

The fourth proportional to 75,668,197.90, 113,502,296.85 and 21,089,207.20 is: 31,633,810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,668,197.90 : 113,502,296.85 = 21,089,207.20 : x
  2. Step 2: Convert to fraction form
    75,668,197.90/113,502,296.85 = 21,089,207.20/x
  3. Step 3: Cross multiply
    75,668,197.90x = 113,502,296.85 × 21,089,207.20
  4. Step 4: Simplify right side
    75,668,197.90x = 2,393,673,455,945,557
  5. Step 5: Solve for x
    x = 2,393,673,455,945,557/75,668,197.90
  6. Step 6: Final answer
    x = 31,633,810.80

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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.