Home / 142,279,330.68-196,345,607.40-77,089,234.68

Finding the Fourth Proportional to 142,279,330.68, 196,345,607.40 and 77,089,234.68

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Solution

The fourth proportional to 142,279,330.68, 196,345,607.40 and 77,089,234.68 is: 106,383,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,279,330.68 : 196,345,607.40 = 77,089,234.68 : x
  2. Step 2: Convert to fraction form
    142,279,330.68/196,345,607.40 = 77,089,234.68/x
  3. Step 3: Cross multiply
    142,279,330.68x = 196,345,607.40 × 77,089,234.68
  4. Step 4: Simplify right side
    142,279,330.68x = 15,136,132,607,245,746
  5. Step 5: Solve for x
    x = 15,136,132,607,245,746/142,279,330.68
  6. Step 6: Final answer
    x = 106,383,214.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.