Home / 20,637,522.89-30,964,769.91-9,116,909.90

Finding the Fourth Proportional to 20,637,522.89, 30,964,769.91 and 9,116,909.90

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Solution

The fourth proportional to 20,637,522.89, 30,964,769.91 and 9,116,909.90 is: 13,679,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637,522.89 : 30,964,769.91 = 9,116,909.90 : x
  2. Step 2: Convert to fraction form
    20,637,522.89/30,964,769.91 = 9,116,909.90/x
  3. Step 3: Cross multiply
    20,637,522.89x = 30,964,769.91 × 9,116,909.90
  4. Step 4: Simplify right side
    20,637,522.89x = 282,303,017,421,113
  5. Step 5: Solve for x
    x = 282,303,017,421,113/20,637,522.89
  6. Step 6: Final answer
    x = 13,679,113.47

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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.