Home / 21,335,271.58-31,989,947.70-8,365,884.76

Finding the Fourth Proportional to 21,335,271.58, 31,989,947.70 and 8,365,884.76

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Solution

The fourth proportional to 21,335,271.58, 31,989,947.70 and 8,365,884.76 is: 12,543,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,271.58 : 31,989,947.70 = 8,365,884.76 : x
  2. Step 2: Convert to fraction form
    21,335,271.58/31,989,947.70 = 8,365,884.76/x
  3. Step 3: Cross multiply
    21,335,271.58x = 31,989,947.70 × 8,365,884.76
  4. Step 4: Simplify right side
    21,335,271.58x = 267,624,215,776,677.31
  5. Step 5: Solve for x
    x = 267,624,215,776,677.31/21,335,271.58
  6. Step 6: Final answer
    x = 12,543,745.45

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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.