Home / 90,089,389.44-135,144,712.98-67,513,775.76

Finding the Fourth Proportional to 90,089,389.44, 135,144,712.98 and 67,513,775.76

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Solution

The fourth proportional to 90,089,389.44, 135,144,712.98 and 67,513,775.76 is: 101,278,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,089,389.44 : 135,144,712.98 = 67,513,775.76 : x
  2. Step 2: Convert to fraction form
    90,089,389.44/135,144,712.98 = 67,513,775.76/x
  3. Step 3: Cross multiply
    90,089,389.44x = 135,144,712.98 × 67,513,775.76
  4. Step 4: Simplify right side
    90,089,389.44x = 9,124,129,847,281,282
  5. Step 5: Solve for x
    x = 9,124,129,847,281,282/90,089,389.44
  6. Step 6: Final answer
    x = 101,278,628.97

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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.