Home / 10,219,108.60-15,315,638.10-5,429,092.60

Finding the Fourth Proportional to 10,219,108.60, 15,315,638.10 and 5,429,092.60

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Solution

The fourth proportional to 10,219,108.60, 15,315,638.10 and 5,429,092.60 is: 8,136,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219,108.60 : 15,315,638.10 = 5,429,092.60 : x
  2. Step 2: Convert to fraction form
    10,219,108.60/15,315,638.10 = 5,429,092.60/x
  3. Step 3: Cross multiply
    10,219,108.60x = 15,315,638.10 × 5,429,092.60
  4. Step 4: Simplify right side
    10,219,108.60x = 83,150,017,472,988.05
  5. Step 5: Solve for x
    x = 83,150,017,472,988.05/10,219,108.60
  6. Step 6: Final answer
    x = 8,136,719.23

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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.