Home / 140,454,020.40-210,681,030.60-91,986,601.20

Finding the Fourth Proportional to 140,454,020.40, 210,681,030.60 and 91,986,601.20

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Solution

The fourth proportional to 140,454,020.40, 210,681,030.60 and 91,986,601.20 is: 137,979,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,454,020.40 : 210,681,030.60 = 91,986,601.20 : x
  2. Step 2: Convert to fraction form
    140,454,020.40/210,681,030.60 = 91,986,601.20/x
  3. Step 3: Cross multiply
    140,454,020.40x = 210,681,030.60 × 91,986,601.20
  4. Step 4: Simplify right side
    140,454,020.40x = 19,379,831,942,207,196
  5. Step 5: Solve for x
    x = 19,379,831,942,207,196/140,454,020.40
  6. Step 6: Final answer
    x = 137,979,901.80

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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.