Home / 18,928,915-26,121,902.82-10,780,911.16

Finding the Fourth Proportional to 18,928,915, 26,121,902.82 and 10,780,911.16

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Solution

The fourth proportional to 18,928,915, 26,121,902.82 and 10,780,911.16 is: 14,877,657.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928,915 : 26,121,902.82 = 10,780,911.16 : x
  2. Step 2: Convert to fraction form
    18,928,915/26,121,902.82 = 10,780,911.16/x
  3. Step 3: Cross multiply
    18,928,915x = 26,121,902.82 × 10,780,911.16
  4. Step 4: Simplify right side
    18,928,915x = 281,617,913,632,573.50
  5. Step 5: Solve for x
    x = 281,617,913,632,573.50/18,928,915
  6. Step 6: Final answer
    x = 14,877,657.47

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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.