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Finding the Fourth Proportional to 28,971,630.40, 43,462,694.40 and 14,558,425.60

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Solution

The fourth proportional to 28,971,630.40, 43,462,694.40 and 14,558,425.60 is: 21,840,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971,630.40 : 43,462,694.40 = 14,558,425.60 : x
  2. Step 2: Convert to fraction form
    28,971,630.40/43,462,694.40 = 14,558,425.60/x
  3. Step 3: Cross multiply
    28,971,630.40x = 43,462,694.40 × 14,558,425.60
  4. Step 4: Simplify right side
    28,971,630.40x = 632,748,402,797,936.62
  5. Step 5: Solve for x
    x = 632,748,402,797,936.62/28,971,630.40
  6. Step 6: Final answer
    x = 21,840,275.95

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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.