Home / 20,254,588.56-30,360,887.28-12,664,123.92

Finding the Fourth Proportional to 20,254,588.56, 30,360,887.28 and 12,664,123.92

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Solution

The fourth proportional to 20,254,588.56, 30,360,887.28 and 12,664,123.92 is: 18,983,058.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254,588.56 : 30,360,887.28 = 12,664,123.92 : x
  2. Step 2: Convert to fraction form
    20,254,588.56/30,360,887.28 = 12,664,123.92/x
  3. Step 3: Cross multiply
    20,254,588.56x = 30,360,887.28 × 12,664,123.92
  4. Step 4: Simplify right side
    20,254,588.56x = 384,494,038,835,071.75
  5. Step 5: Solve for x
    x = 384,494,038,835,071.75/20,254,588.56
  6. Step 6: Final answer
    x = 18,983,058.47

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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.