Home / 187,053,438.22-258,142,741.78-103,420,021.30

Finding the Fourth Proportional to 187,053,438.22, 258,142,741.78 and 103,420,021.30

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Solution

The fourth proportional to 187,053,438.22, 258,142,741.78 and 103,420,021.30 is: 142,724,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,053,438.22 : 258,142,741.78 = 103,420,021.30 : x
  2. Step 2: Convert to fraction form
    187,053,438.22/258,142,741.78 = 103,420,021.30/x
  3. Step 3: Cross multiply
    187,053,438.22x = 258,142,741.78 × 103,420,021.30
  4. Step 4: Simplify right side
    187,053,438.22x = 26,697,127,853,328,000
  5. Step 5: Solve for x
    x = 26,697,127,853,328,000/187,053,438.22
  6. Step 6: Final answer
    x = 142,724,603.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.