Home / 19,199,947.20-28,725,271.20-12,481,483.20

Finding the Fourth Proportional to 19,199,947.20, 28,725,271.20 and 12,481,483.20

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Solution

The fourth proportional to 19,199,947.20, 28,725,271.20 and 12,481,483.20 is: 18,673,696.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199,947.20 : 28,725,271.20 = 12,481,483.20 : x
  2. Step 2: Convert to fraction form
    19,199,947.20/28,725,271.20 = 12,481,483.20/x
  3. Step 3: Cross multiply
    19,199,947.20x = 28,725,271.20 × 12,481,483.20
  4. Step 4: Simplify right side
    19,199,947.20x = 358,533,989,898,243.81
  5. Step 5: Solve for x
    x = 358,533,989,898,243.81/19,199,947.20
  6. Step 6: Final answer
    x = 18,673,696.66

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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.