Home / 12,712,802.40-19,062,205.20-4,188,751.20

Finding the Fourth Proportional to 12,712,802.40, 19,062,205.20 and 4,188,751.20

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Solution

The fourth proportional to 12,712,802.40, 19,062,205.20 and 4,188,751.20 is: 6,280,820.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712,802.40 : 19,062,205.20 = 4,188,751.20 : x
  2. Step 2: Convert to fraction form
    12,712,802.40/19,062,205.20 = 4,188,751.20/x
  3. Step 3: Cross multiply
    12,712,802.40x = 19,062,205.20 × 4,188,751.20
  4. Step 4: Simplify right side
    12,712,802.40x = 79,846,834,906,146.23
  5. Step 5: Solve for x
    x = 79,846,834,906,146.23/12,712,802.40
  6. Step 6: Final answer
    x = 6,280,820.89

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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.