Home / 28,243,724.33-42,345,657.45-12,898,365.45

Finding the Fourth Proportional to 28,243,724.33, 42,345,657.45 and 12,898,365.45

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Solution

The fourth proportional to 28,243,724.33, 42,345,657.45 and 12,898,365.45 is: 19,338,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,724.33 : 42,345,657.45 = 12,898,365.45 : x
  2. Step 2: Convert to fraction form
    28,243,724.33/42,345,657.45 = 12,898,365.45/x
  3. Step 3: Cross multiply
    28,243,724.33x = 42,345,657.45 × 12,898,365.45
  4. Step 4: Simplify right side
    28,243,724.33x = 546,189,765,010,615.12
  5. Step 5: Solve for x
    x = 546,189,765,010,615.12/28,243,724.33
  6. Step 6: Final answer
    x = 19,338,446.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.