Home / 28,730,855.52-39,649,422.06-15,678,955.62

Finding the Fourth Proportional to 28,730,855.52, 39,649,422.06 and 15,678,955.62

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Solution

The fourth proportional to 28,730,855.52, 39,649,422.06 and 15,678,955.62 is: 21,637,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730,855.52 : 39,649,422.06 = 15,678,955.62 : x
  2. Step 2: Convert to fraction form
    28,730,855.52/39,649,422.06 = 15,678,955.62/x
  3. Step 3: Cross multiply
    28,730,855.52x = 39,649,422.06 × 15,678,955.62
  4. Step 4: Simplify right side
    28,730,855.52x = 621,661,528,837,389
  5. Step 5: Solve for x
    x = 621,661,528,837,389/28,730,855.52
  6. Step 6: Final answer
    x = 21,637,417.95

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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.