Home / 157,396,972.26-235,779,270.98-78,375,412.27

Finding the Fourth Proportional to 157,396,972.26, 235,779,270.98 and 78,375,412.27

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Solution

The fourth proportional to 157,396,972.26, 235,779,270.98 and 78,375,412.27 is: 117,405,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,396,972.26 : 235,779,270.98 = 78,375,412.27 : x
  2. Step 2: Convert to fraction form
    157,396,972.26/235,779,270.98 = 78,375,412.27/x
  3. Step 3: Cross multiply
    157,396,972.26x = 235,779,270.98 × 78,375,412.27
  4. Step 4: Simplify right side
    157,396,972.26x = 18,479,297,566,795,388
  5. Step 5: Solve for x
    x = 18,479,297,566,795,388/157,396,972.26
  6. Step 6: Final answer
    x = 117,405,673.70

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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.