Home / 21,335,257.42-31,989,926.47-8,365,870.54

Finding the Fourth Proportional to 21,335,257.42, 31,989,926.47 and 8,365,870.54

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Solution

The fourth proportional to 21,335,257.42, 31,989,926.47 and 8,365,870.54 is: 12,543,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,257.42 : 31,989,926.47 = 8,365,870.54 : x
  2. Step 2: Convert to fraction form
    21,335,257.42/31,989,926.47 = 8,365,870.54/x
  3. Step 3: Cross multiply
    21,335,257.42x = 31,989,926.47 × 8,365,870.54
  4. Step 4: Simplify right side
    21,335,257.42x = 267,623,583,362,621.72
  5. Step 5: Solve for x
    x = 267,623,583,362,621.72/21,335,257.42
  6. Step 6: Final answer
    x = 12,543,724.13

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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.