Home / 28,678,155.44-39,575,356.16-15,625,521.60

Finding the Fourth Proportional to 28,678,155.44, 39,575,356.16 and 15,625,521.60

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Solution

The fourth proportional to 28,678,155.44, 39,575,356.16 and 15,625,521.60 is: 21,562,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,155.44 : 39,575,356.16 = 15,625,521.60 : x
  2. Step 2: Convert to fraction form
    28,678,155.44/39,575,356.16 = 15,625,521.60/x
  3. Step 3: Cross multiply
    28,678,155.44x = 39,575,356.16 × 15,625,521.60
  4. Step 4: Simplify right side
    28,678,155.44x = 618,385,582,505,773
  5. Step 5: Solve for x
    x = 618,385,582,505,773/28,678,155.44
  6. Step 6: Final answer
    x = 21,562,948.28

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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.