Home / 28,724,421.28-39,626,351.76-17,115,475.36

Finding the Fourth Proportional to 28,724,421.28, 39,626,351.76 and 17,115,475.36

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Solution

The fourth proportional to 28,724,421.28, 39,626,351.76 and 17,115,475.36 is: 23,611,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724,421.28 : 39,626,351.76 = 17,115,475.36 : x
  2. Step 2: Convert to fraction form
    28,724,421.28/39,626,351.76 = 17,115,475.36/x
  3. Step 3: Cross multiply
    28,724,421.28x = 39,626,351.76 × 17,115,475.36
  4. Step 4: Simplify right side
    28,724,421.28x = 678,223,847,154,972.62
  5. Step 5: Solve for x
    x = 678,223,847,154,972.62/28,724,421.28
  6. Step 6: Final answer
    x = 23,611,401.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.