Home / 326,431,008.60-489,646,512.90-252,454,421.40

Finding the Fourth Proportional to 326,431,008.60, 489,646,512.90 and 252,454,421.40

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Solution

The fourth proportional to 326,431,008.60, 489,646,512.90 and 252,454,421.40 is: 378,681,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,431,008.60 : 489,646,512.90 = 252,454,421.40 : x
  2. Step 2: Convert to fraction form
    326,431,008.60/489,646,512.90 = 252,454,421.40/x
  3. Step 3: Cross multiply
    326,431,008.60x = 489,646,512.90 × 252,454,421.40
  4. Step 4: Simplify right side
    326,431,008.60x = 123,613,427,104,697,136
  5. Step 5: Solve for x
    x = 123,613,427,104,697,136/326,431,008.60
  6. Step 6: Final answer
    x = 378,681,632.10

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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.