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Finding the Fourth Proportional to 128,492,411.04, 192,738,611.70 and 37,616,000.04

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Solution

The fourth proportional to 128,492,411.04, 192,738,611.70 and 37,616,000.04 is: 56,423,998.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,492,411.04 : 192,738,611.70 = 37,616,000.04 : x
  2. Step 2: Convert to fraction form
    128,492,411.04/192,738,611.70 = 37,616,000.04/x
  3. Step 3: Cross multiply
    128,492,411.04x = 192,738,611.70 × 37,616,000.04
  4. Step 4: Simplify right side
    128,492,411.04x = 7,250,055,625,416,744
  5. Step 5: Solve for x
    x = 7,250,055,625,416,744/128,492,411.04
  6. Step 6: Final answer
    x = 56,423,998.64

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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.