Home / 12,771,374.40-19,157,061.60-10,503,892.80

Finding the Fourth Proportional to 12,771,374.40, 19,157,061.60 and 10,503,892.80

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Solution

The fourth proportional to 12,771,374.40, 19,157,061.60 and 10,503,892.80 is: 15,755,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,374.40 : 19,157,061.60 = 10,503,892.80 : x
  2. Step 2: Convert to fraction form
    12,771,374.40/19,157,061.60 = 10,503,892.80/x
  3. Step 3: Cross multiply
    12,771,374.40x = 19,157,061.60 × 10,503,892.80
  4. Step 4: Simplify right side
    12,771,374.40x = 201,223,721,409,396.50
  5. Step 5: Solve for x
    x = 201,223,721,409,396.50/12,771,374.40
  6. Step 6: Final answer
    x = 15,755,839.20

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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.