Home / 120,077,580.67-165,707,203.07-65,073,437.17

Finding the Fourth Proportional to 120,077,580.67, 165,707,203.07 and 65,073,437.17

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Solution

The fourth proportional to 120,077,580.67, 165,707,203.07 and 65,073,437.17 is: 89,801,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,077,580.67 : 165,707,203.07 = 65,073,437.17 : x
  2. Step 2: Convert to fraction form
    120,077,580.67/165,707,203.07 = 65,073,437.17/x
  3. Step 3: Cross multiply
    120,077,580.67x = 165,707,203.07 × 65,073,437.17
  4. Step 4: Simplify right side
    120,077,580.67x = 10,783,137,267,340,490
  5. Step 5: Solve for x
    x = 10,783,137,267,340,490/120,077,580.67
  6. Step 6: Final answer
    x = 89,801,420.11

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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.