Home / 386,313,446.10-579,271,103.55-143,851,545.30

Finding the Fourth Proportional to 386,313,446.10, 579,271,103.55 and 143,851,545.30

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Solution

The fourth proportional to 386,313,446.10, 579,271,103.55 and 143,851,545.30 is: 215,703,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,313,446.10 : 579,271,103.55 = 143,851,545.30 : x
  2. Step 2: Convert to fraction form
    386,313,446.10/579,271,103.55 = 143,851,545.30/x
  3. Step 3: Cross multiply
    386,313,446.10x = 579,271,103.55 × 143,851,545.30
  4. Step 4: Simplify right side
    386,313,446.10x = 83,329,043,393,303,808
  5. Step 5: Solve for x
    x = 83,329,043,393,303,808/386,313,446.10
  6. Step 6: Final answer
    x = 215,703,191.89

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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.