Home / 30,215,995.58-45,341,579.28-12,707,294.78

Finding the Fourth Proportional to 30,215,995.58, 45,341,579.28 and 12,707,294.78

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Solution

The fourth proportional to 30,215,995.58, 45,341,579.28 and 12,707,294.78 is: 19,068,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215,995.58 : 45,341,579.28 = 12,707,294.78 : x
  2. Step 2: Convert to fraction form
    30,215,995.58/45,341,579.28 = 12,707,294.78/x
  3. Step 3: Cross multiply
    30,215,995.58x = 45,341,579.28 × 12,707,294.78
  4. Step 4: Simplify right side
    30,215,995.58x = 576,168,813,701,700.12
  5. Step 5: Solve for x
    x = 576,168,813,701,700.12/30,215,995.58
  6. Step 6: Final answer
    x = 19,068,337.90

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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.