Home / 20,037,474.36-27,634,645.53-15,402,478.32

Finding the Fourth Proportional to 20,037,474.36, 27,634,645.53 and 15,402,478.32

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Solution

The fourth proportional to 20,037,474.36, 27,634,645.53 and 15,402,478.32 is: 21,242,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037,474.36 : 27,634,645.53 = 15,402,478.32 : x
  2. Step 2: Convert to fraction form
    20,037,474.36/27,634,645.53 = 15,402,478.32/x
  3. Step 3: Cross multiply
    20,037,474.36x = 27,634,645.53 × 15,402,478.32
  4. Step 4: Simplify right side
    20,037,474.36x = 425,642,028,656,709.94
  5. Step 5: Solve for x
    x = 425,642,028,656,709.94/20,037,474.36
  6. Step 6: Final answer
    x = 21,242,299.35

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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.