Home / 28,965,300.58-39,972,129.44-15,913,400.07

Finding the Fourth Proportional to 28,965,300.58, 39,972,129.44 and 15,913,400.07

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Solution

The fourth proportional to 28,965,300.58, 39,972,129.44 and 15,913,400.07 is: 21,960,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965,300.58 : 39,972,129.44 = 15,913,400.07 : x
  2. Step 2: Convert to fraction form
    28,965,300.58/39,972,129.44 = 15,913,400.07/x
  3. Step 3: Cross multiply
    28,965,300.58x = 39,972,129.44 × 15,913,400.07
  4. Step 4: Simplify right side
    28,965,300.58x = 636,092,487,348,978.12
  5. Step 5: Solve for x
    x = 636,092,487,348,978.12/28,965,300.58
  6. Step 6: Final answer
    x = 21,960,500.14

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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.