Home / 205,433,980.11-307,958,073.52-69,023,966.67

Finding the Fourth Proportional to 205,433,980.11, 307,958,073.52 and 69,023,966.67

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Solution

The fourth proportional to 205,433,980.11, 307,958,073.52 and 69,023,966.67 is: 103,471,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,433,980.11 : 307,958,073.52 = 69,023,966.67 : x
  2. Step 2: Convert to fraction form
    205,433,980.11/307,958,073.52 = 69,023,966.67/x
  3. Step 3: Cross multiply
    205,433,980.11x = 307,958,073.52 × 69,023,966.67
  4. Step 4: Simplify right side
    205,433,980.11x = 21,256,487,802,056,768
  5. Step 5: Solve for x
    x = 21,256,487,802,056,768/205,433,980.11
  6. Step 6: Final answer
    x = 103,471,138.47

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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.