Home / 30,328,479.90-45,492,719.85-21,719,135.70

Finding the Fourth Proportional to 30,328,479.90, 45,492,719.85 and 21,719,135.70

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Solution

The fourth proportional to 30,328,479.90, 45,492,719.85 and 21,719,135.70 is: 32,578,703.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328,479.90 : 45,492,719.85 = 21,719,135.70 : x
  2. Step 2: Convert to fraction form
    30,328,479.90/45,492,719.85 = 21,719,135.70/x
  3. Step 3: Cross multiply
    30,328,479.90x = 45,492,719.85 × 21,719,135.70
  4. Step 4: Simplify right side
    30,328,479.90x = 988,062,555,784,233.62
  5. Step 5: Solve for x
    x = 988,062,555,784,233.62/30,328,479.90
  6. Step 6: Final answer
    x = 32,578,703.55

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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.