Home / 28,445,013.78-39,254,223.06-15,392,272.80

Finding the Fourth Proportional to 28,445,013.78, 39,254,223.06 and 15,392,272.80

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Solution

The fourth proportional to 28,445,013.78, 39,254,223.06 and 15,392,272.80 is: 21,241,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445,013.78 : 39,254,223.06 = 15,392,272.80 : x
  2. Step 2: Convert to fraction form
    28,445,013.78/39,254,223.06 = 15,392,272.80/x
  3. Step 3: Cross multiply
    28,445,013.78x = 39,254,223.06 × 15,392,272.80
  4. Step 4: Simplify right side
    28,445,013.78x = 604,211,709,891,570.88
  5. Step 5: Solve for x
    x = 604,211,709,891,570.88/28,445,013.78
  6. Step 6: Final answer
    x = 21,241,392.76

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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.