Home / 142,012,706.73-196,010,160.62-83,294,288.25

Finding the Fourth Proportional to 142,012,706.73, 196,010,160.62 and 83,294,288.25

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Solution

The fourth proportional to 142,012,706.73, 196,010,160.62 and 83,294,288.25 is: 114,965,253.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,012,706.73 : 196,010,160.62 = 83,294,288.25 : x
  2. Step 2: Convert to fraction form
    142,012,706.73/196,010,160.62 = 83,294,288.25/x
  3. Step 3: Cross multiply
    142,012,706.73x = 196,010,160.62 × 83,294,288.25
  4. Step 4: Simplify right side
    142,012,706.73x = 16,326,526,818,611,080
  5. Step 5: Solve for x
    x = 16,326,526,818,611,080/142,012,706.73
  6. Step 6: Final answer
    x = 114,965,253.42

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Double scale
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Similar ratio
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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.