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Finding the Fourth Proportional to 72,293,890.60, 108,440,144.70 and 17,706,716.20

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Solution

The fourth proportional to 72,293,890.60, 108,440,144.70 and 17,706,716.20 is: 26,559,905.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,293,890.60 : 108,440,144.70 = 17,706,716.20 : x
  2. Step 2: Convert to fraction form
    72,293,890.60/108,440,144.70 = 17,706,716.20/x
  3. Step 3: Cross multiply
    72,293,890.60x = 108,440,144.70 × 17,706,716.20
  4. Step 4: Simplify right side
    72,293,890.60x = 1,920,118,866,889,834
  5. Step 5: Solve for x
    x = 1,920,118,866,889,834/72,293,890.60
  6. Step 6: Final answer
    x = 26,559,905.01

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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.