Home / 90,439,688.79-135,660,353.31-25,743,468.42

Finding the Fourth Proportional to 90,439,688.79, 135,660,353.31 and 25,743,468.42

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Solution

The fourth proportional to 90,439,688.79, 135,660,353.31 and 25,743,468.42 is: 38,615,436.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,439,688.79 : 135,660,353.31 = 25,743,468.42 : x
  2. Step 2: Convert to fraction form
    90,439,688.79/135,660,353.31 = 25,743,468.42/x
  3. Step 3: Cross multiply
    90,439,688.79x = 135,660,353.31 × 25,743,468.42
  4. Step 4: Simplify right side
    90,439,688.79x = 3,492,368,021,282,028
  5. Step 5: Solve for x
    x = 3,492,368,021,282,028/90,439,688.79
  6. Step 6: Final answer
    x = 38,615,436.08

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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.