Home / 15,005,461.21-20,707,266.25-8,478,950.20

Finding the Fourth Proportional to 15,005,461.21, 20,707,266.25 and 8,478,950.20

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Solution

The fourth proportional to 15,005,461.21, 20,707,266.25 and 8,478,950.20 is: 11,700,798.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005,461.21 : 20,707,266.25 = 8,478,950.20 : x
  2. Step 2: Convert to fraction form
    15,005,461.21/20,707,266.25 = 8,478,950.20/x
  3. Step 3: Cross multiply
    15,005,461.21x = 20,707,266.25 × 8,478,950.20
  4. Step 4: Simplify right side
    15,005,461.21x = 175,575,879,311,890.75
  5. Step 5: Solve for x
    x = 175,575,879,311,890.75/15,005,461.21
  6. Step 6: Final answer
    x = 11,700,798.59

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1.5x scale

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.