Home / 18,723,000.30-28,084,500.45-12,345,708.30

Finding the Fourth Proportional to 18,723,000.30, 28,084,500.45 and 12,345,708.30

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Solution

The fourth proportional to 18,723,000.30, 28,084,500.45 and 12,345,708.30 is: 18,518,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,000.30 : 28,084,500.45 = 12,345,708.30 : x
  2. Step 2: Convert to fraction form
    18,723,000.30/28,084,500.45 = 12,345,708.30/x
  3. Step 3: Cross multiply
    18,723,000.30x = 28,084,500.45 × 12,345,708.30
  4. Step 4: Simplify right side
    18,723,000.30x = 346,723,050,306,918.75
  5. Step 5: Solve for x
    x = 346,723,050,306,918.75/18,723,000.30
  6. Step 6: Final answer
    x = 18,518,562.45

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1.5x scale

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.