Home / 28,169,411.40-42,269,817.03-15,215,300.64

Finding the Fourth Proportional to 28,169,411.40, 42,269,817.03 and 15,215,300.64

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Solution

The fourth proportional to 28,169,411.40, 42,269,817.03 and 15,215,300.64 is: 22,831,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169,411.40 : 42,269,817.03 = 15,215,300.64 : x
  2. Step 2: Convert to fraction form
    28,169,411.40/42,269,817.03 = 15,215,300.64/x
  3. Step 3: Cross multiply
    28,169,411.40x = 42,269,817.03 × 15,215,300.64
  4. Step 4: Simplify right side
    28,169,411.40x = 643,147,974,109,242
  5. Step 5: Solve for x
    x = 643,147,974,109,242/28,169,411.40
  6. Step 6: Final answer
    x = 22,831,431.05

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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.