Home / 420,139,040.10-629,783,407.35-247,527,003.30

Finding the Fourth Proportional to 420,139,040.10, 629,783,407.35 and 247,527,003.30

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Solution

The fourth proportional to 420,139,040.10, 629,783,407.35 and 247,527,003.30 is: 371,040,024.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,139,040.10 : 629,783,407.35 = 247,527,003.30 : x
  2. Step 2: Convert to fraction form
    420,139,040.10/629,783,407.35 = 247,527,003.30/x
  3. Step 3: Cross multiply
    420,139,040.10x = 629,783,407.35 × 247,527,003.30
  4. Step 4: Simplify right side
    420,139,040.10x = 155,888,399,549,408,704
  5. Step 5: Solve for x
    x = 155,888,399,549,408,704/420,139,040.10
  6. Step 6: Final answer
    x = 371,040,024.07

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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.