Home / 13,303,820.70-19,955,731.05-7,540,638.30

Finding the Fourth Proportional to 13,303,820.70, 19,955,731.05 and 7,540,638.30

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Solution

The fourth proportional to 13,303,820.70, 19,955,731.05 and 7,540,638.30 is: 11,310,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303,820.70 : 19,955,731.05 = 7,540,638.30 : x
  2. Step 2: Convert to fraction form
    13,303,820.70/19,955,731.05 = 7,540,638.30/x
  3. Step 3: Cross multiply
    13,303,820.70x = 19,955,731.05 × 7,540,638.30
  4. Step 4: Simplify right side
    13,303,820.70x = 150,478,949,860,129.22
  5. Step 5: Solve for x
    x = 150,478,949,860,129.22/13,303,820.70
  6. Step 6: Final answer
    x = 11,310,957.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.