Home / 28,979,492.03-39,992,658.08-15,927,213.59

Finding the Fourth Proportional to 28,979,492.03, 39,992,658.08 and 15,927,213.59

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Solution

The fourth proportional to 28,979,492.03, 39,992,658.08 and 15,927,213.59 is: 21,980,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,492.03 : 39,992,658.08 = 15,927,213.59 : x
  2. Step 2: Convert to fraction form
    28,979,492.03/39,992,658.08 = 15,927,213.59/x
  3. Step 3: Cross multiply
    28,979,492.03x = 39,992,658.08 × 15,927,213.59
  4. Step 4: Simplify right side
    28,979,492.03x = 636,971,607,271,999.25
  5. Step 5: Solve for x
    x = 636,971,607,271,999.25/28,979,492.03
  6. Step 6: Final answer
    x = 21,980,081.87

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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.