Home / 21,004,602.32-28,985,949.96-11,837,061.20

Finding the Fourth Proportional to 21,004,602.32, 28,985,949.96 and 11,837,061.20

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Solution

The fourth proportional to 21,004,602.32, 28,985,949.96 and 11,837,061.20 is: 16,334,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,602.32 : 28,985,949.96 = 11,837,061.20 : x
  2. Step 2: Convert to fraction form
    21,004,602.32/28,985,949.96 = 11,837,061.20/x
  3. Step 3: Cross multiply
    21,004,602.32x = 28,985,949.96 × 11,837,061.20
  4. Step 4: Simplify right side
    21,004,602.32x = 343,108,463,616,657.56
  5. Step 5: Solve for x
    x = 343,108,463,616,657.56/21,004,602.32
  6. Step 6: Final answer
    x = 16,334,918.34

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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.