Home / 28,991,479.94-43,392,592.07-21,313,090.61

Finding the Fourth Proportional to 28,991,479.94, 43,392,592.07 and 21,313,090.61

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Solution

The fourth proportional to 28,991,479.94, 43,392,592.07 and 21,313,090.61 is: 31,900,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991,479.94 : 43,392,592.07 = 21,313,090.61 : x
  2. Step 2: Convert to fraction form
    28,991,479.94/43,392,592.07 = 21,313,090.61/x
  3. Step 3: Cross multiply
    28,991,479.94x = 43,392,592.07 × 21,313,090.61
  4. Step 4: Simplify right side
    28,991,479.94x = 924,830,246,753,878.62
  5. Step 5: Solve for x
    x = 924,830,246,753,878.62/28,991,479.94
  6. Step 6: Final answer
    x = 31,900,070.25

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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.