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Finding the Fourth Proportional to 18,173,681.70, 27,260,522.55 and 13,071,848.10

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Solution

The fourth proportional to 18,173,681.70, 27,260,522.55 and 13,071,848.10 is: 19,607,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173,681.70 : 27,260,522.55 = 13,071,848.10 : x
  2. Step 2: Convert to fraction form
    18,173,681.70/27,260,522.55 = 13,071,848.10/x
  3. Step 3: Cross multiply
    18,173,681.70x = 27,260,522.55 × 13,071,848.10
  4. Step 4: Simplify right side
    18,173,681.70x = 356,345,409,900,224.62
  5. Step 5: Solve for x
    x = 356,345,409,900,224.62/18,173,681.70
  6. Step 6: Final answer
    x = 19,607,772.15

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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.