Home / 28,502,199.81-39,331,981.98-15,449,178.47

Finding the Fourth Proportional to 28,502,199.81, 39,331,981.98 and 15,449,178.47

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Solution

The fourth proportional to 28,502,199.81, 39,331,981.98 and 15,449,178.47 is: 21,319,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502,199.81 : 39,331,981.98 = 15,449,178.47 : x
  2. Step 2: Convert to fraction form
    28,502,199.81/39,331,981.98 = 15,449,178.47/x
  3. Step 3: Cross multiply
    28,502,199.81x = 39,331,981.98 × 15,449,178.47
  4. Step 4: Simplify right side
    28,502,199.81x = 607,646,808,991,184
  5. Step 5: Solve for x
    x = 607,646,808,991,184/28,502,199.81
  6. Step 6: Final answer
    x = 21,319,295.11

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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.