Home / 28,443,168.36-39,251,277.27-15,390,139.05

Finding the Fourth Proportional to 28,443,168.36, 39,251,277.27 and 15,390,139.05

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Solution

The fourth proportional to 28,443,168.36, 39,251,277.27 and 15,390,139.05 is: 21,238,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443,168.36 : 39,251,277.27 = 15,390,139.05 : x
  2. Step 2: Convert to fraction form
    28,443,168.36/39,251,277.27 = 15,390,139.05/x
  3. Step 3: Cross multiply
    28,443,168.36x = 39,251,277.27 × 15,390,139.05
  4. Step 4: Simplify right side
    28,443,168.36x = 604,082,615,075,404.50
  5. Step 5: Solve for x
    x = 604,082,615,075,404.50/28,443,168.36
  6. Step 6: Final answer
    x = 21,238,232.23

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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.