Home / 215,038,089.45-322,625,434.19-90,606,493.71

Finding the Fourth Proportional to 215,038,089.45, 322,625,434.19 and 90,606,493.71

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Solution

The fourth proportional to 215,038,089.45, 322,625,434.19 and 90,606,493.71 is: 135,938,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,038,089.45 : 322,625,434.19 = 90,606,493.71 : x
  2. Step 2: Convert to fraction form
    215,038,089.45/322,625,434.19 = 90,606,493.71/x
  3. Step 3: Cross multiply
    215,038,089.45x = 322,625,434.19 × 90,606,493.71
  4. Step 4: Simplify right side
    215,038,089.45x = 29,231,959,373,169,220
  5. Step 5: Solve for x
    x = 29,231,959,373,169,220/215,038,089.45
  6. Step 6: Final answer
    x = 135,938,518.84

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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.