Home / 137,907,117.81-206,890,944.80-40,870,430.82

Finding the Fourth Proportional to 137,907,117.81, 206,890,944.80 and 40,870,430.82

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Solution

The fourth proportional to 137,907,117.81, 206,890,944.80 and 40,870,430.82 is: 61,314,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,907,117.81 : 206,890,944.80 = 40,870,430.82 : x
  2. Step 2: Convert to fraction form
    137,907,117.81/206,890,944.80 = 40,870,430.82/x
  3. Step 3: Cross multiply
    137,907,117.81x = 206,890,944.80 × 40,870,430.82
  4. Step 4: Simplify right side
    137,907,117.81x = 8,455,722,046,528,486
  5. Step 5: Solve for x
    x = 8,455,722,046,528,486/137,907,117.81
  6. Step 6: Final answer
    x = 61,314,616.54

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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.