Home / 157,396,972.76-235,779,271.73-78,375,412.77

Finding the Fourth Proportional to 157,396,972.76, 235,779,271.73 and 78,375,412.77

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Solution

The fourth proportional to 157,396,972.76, 235,779,271.73 and 78,375,412.77 is: 117,405,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,396,972.76 : 235,779,271.73 = 78,375,412.77 : x
  2. Step 2: Convert to fraction form
    157,396,972.76/235,779,271.73 = 78,375,412.77/x
  3. Step 3: Cross multiply
    157,396,972.76x = 235,779,271.73 × 78,375,412.77
  4. Step 4: Simplify right side
    157,396,972.76x = 18,479,297,743,269,844
  5. Step 5: Solve for x
    x = 18,479,297,743,269,844/157,396,972.76
  6. Step 6: Final answer
    x = 117,405,674.45

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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.