Home / 20,915,848.61-28,864,571.96-11,623,810.25

Finding the Fourth Proportional to 20,915,848.61, 28,864,571.96 and 11,623,810.25

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Solution

The fourth proportional to 20,915,848.61, 28,864,571.96 and 11,623,810.25 is: 16,041,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,848.61 : 28,864,571.96 = 11,623,810.25 : x
  2. Step 2: Convert to fraction form
    20,915,848.61/28,864,571.96 = 11,623,810.25/x
  3. Step 3: Cross multiply
    20,915,848.61x = 28,864,571.96 × 11,623,810.25
  4. Step 4: Simplify right side
    20,915,848.61x = 335,516,307,208,068.62
  5. Step 5: Solve for x
    x = 335,516,307,208,068.62/20,915,848.61
  6. Step 6: Final answer
    x = 16,041,247.65

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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.