Home / 15,138,012.32-20,917,783.38-10,779,531.81

Finding the Fourth Proportional to 15,138,012.32, 20,917,783.38 and 10,779,531.81

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Solution

The fourth proportional to 15,138,012.32, 20,917,783.38 and 10,779,531.81 is: 14,895,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,012.32 : 20,917,783.38 = 10,779,531.81 : x
  2. Step 2: Convert to fraction form
    15,138,012.32/20,917,783.38 = 10,779,531.81/x
  3. Step 3: Cross multiply
    15,138,012.32x = 20,917,783.38 × 10,779,531.81
  4. Step 4: Simplify right side
    15,138,012.32x = 225,483,911,339,399.31
  5. Step 5: Solve for x
    x = 225,483,911,339,399.31/15,138,012.32
  6. Step 6: Final answer
    x = 14,895,212.57

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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.