Home / 142,662,555.60-213,993,833.40-91,644,219.60

Finding the Fourth Proportional to 142,662,555.60, 213,993,833.40 and 91,644,219.60

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Solution

The fourth proportional to 142,662,555.60, 213,993,833.40 and 91,644,219.60 is: 137,466,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,662,555.60 : 213,993,833.40 = 91,644,219.60 : x
  2. Step 2: Convert to fraction form
    142,662,555.60/213,993,833.40 = 91,644,219.60/x
  3. Step 3: Cross multiply
    142,662,555.60x = 213,993,833.40 × 91,644,219.60
  4. Step 4: Simplify right side
    142,662,555.60x = 19,611,297,861,155,412
  5. Step 5: Solve for x
    x = 19,611,297,861,155,412/142,662,555.60
  6. Step 6: Final answer
    x = 137,466,329.40

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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.