Home / 5,190,352.13-7,158,705.12-3,123,212.73

Finding the Fourth Proportional to 5,190,352.13, 7,158,705.12 and 3,123,212.73

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Solution

The fourth proportional to 5,190,352.13, 7,158,705.12 and 3,123,212.73 is: 4,307,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,352.13 : 7,158,705.12 = 3,123,212.73 : x
  2. Step 2: Convert to fraction form
    5,190,352.13/7,158,705.12 = 3,123,212.73/x
  3. Step 3: Cross multiply
    5,190,352.13x = 7,158,705.12 × 3,123,212.73
  4. Step 4: Simplify right side
    5,190,352.13x = 22,358,158,961,100.18
  5. Step 5: Solve for x
    x = 22,358,158,961,100.18/5,190,352.13
  6. Step 6: Final answer
    x = 4,307,638.17

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1.5x scale

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.