Home / 28,502,199.56-39,331,981.64-15,449,178.22

Finding the Fourth Proportional to 28,502,199.56, 39,331,981.64 and 15,449,178.22

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Solution

The fourth proportional to 28,502,199.56, 39,331,981.64 and 15,449,178.22 is: 21,319,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,199.56 : 39,331,981.64 = 15,449,178.22 : x
  2. Step 2: Convert to fraction form
    28,502,199.56/39,331,981.64 = 15,449,178.22/x
  3. Step 3: Cross multiply
    28,502,199.56x = 39,331,981.64 × 15,449,178.22
  4. Step 4: Simplify right side
    28,502,199.56x = 607,646,793,926,552
  5. Step 5: Solve for x
    x = 607,646,793,926,552/28,502,199.56
  6. Step 6: Final answer
    x = 21,319,294.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.