Home / 30,719,599.88-42,392,084.64-16,780,731.08

Finding the Fourth Proportional to 30,719,599.88, 42,392,084.64 and 16,780,731.08

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Solution

The fourth proportional to 30,719,599.88, 42,392,084.64 and 16,780,731.08 is: 23,156,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719,599.88 : 42,392,084.64 = 16,780,731.08 : x
  2. Step 2: Convert to fraction form
    30,719,599.88/42,392,084.64 = 16,780,731.08/x
  3. Step 3: Cross multiply
    30,719,599.88x = 42,392,084.64 × 16,780,731.08
  4. Step 4: Simplify right side
    30,719,599.88x = 711,370,172,264,438.50
  5. Step 5: Solve for x
    x = 711,370,172,264,438.50/30,719,599.88
  6. Step 6: Final answer
    x = 23,156,882.74

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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.