Home / 15,402,012.42-21,253,935.07-8,431,341.48

Finding the Fourth Proportional to 15,402,012.42, 21,253,935.07 and 8,431,341.48

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Solution

The fourth proportional to 15,402,012.42, 21,253,935.07 and 8,431,341.48 is: 11,634,790.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,012.42 : 21,253,935.07 = 8,431,341.48 : x
  2. Step 2: Convert to fraction form
    15,402,012.42/21,253,935.07 = 8,431,341.48/x
  3. Step 3: Cross multiply
    15,402,012.42x = 21,253,935.07 × 8,431,341.48
  4. Step 4: Simplify right side
    15,402,012.42x = 179,199,184,368,917.72
  5. Step 5: Solve for x
    x = 179,199,184,368,917.72/15,402,012.42
  6. Step 6: Final answer
    x = 11,634,790.28

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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.