Home / 28,190,890.20-42,291,000.90-12,024,586.20

Finding the Fourth Proportional to 28,190,890.20, 42,291,000.90 and 12,024,586.20

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Solution

The fourth proportional to 28,190,890.20, 42,291,000.90 and 12,024,586.20 is: 18,038,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,890.20 : 42,291,000.90 = 12,024,586.20 : x
  2. Step 2: Convert to fraction form
    28,190,890.20/42,291,000.90 = 12,024,586.20/x
  3. Step 3: Cross multiply
    28,190,890.20x = 42,291,000.90 × 12,024,586.20
  4. Step 4: Simplify right side
    28,190,890.20x = 508,531,785,806,327.50
  5. Step 5: Solve for x
    x = 508,531,785,806,327.50/28,190,890.20
  6. Step 6: Final answer
    x = 18,038,869.37

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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.