Home / 10,500,970.80-15,719,963.40-6,238,945.20

Finding the Fourth Proportional to 10,500,970.80, 15,719,963.40 and 6,238,945.20

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Solution

The fourth proportional to 10,500,970.80, 15,719,963.40 and 6,238,945.20 is: 9,339,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500,970.80 : 15,719,963.40 = 6,238,945.20 : x
  2. Step 2: Convert to fraction form
    10,500,970.80/15,719,963.40 = 6,238,945.20/x
  3. Step 3: Cross multiply
    10,500,970.80x = 15,719,963.40 × 6,238,945.20
  4. Step 4: Simplify right side
    10,500,970.80x = 98,075,990,198,605.69
  5. Step 5: Solve for x
    x = 98,075,990,198,605.69/10,500,970.80
  6. Step 6: Final answer
    x = 9,339,706.97

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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.