Home / 18,719,551.50-28,075,776.21-9,125,280.78

Finding the Fourth Proportional to 18,719,551.50, 28,075,776.21 and 9,125,280.78

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Solution

The fourth proportional to 18,719,551.50, 28,075,776.21 and 9,125,280.78 is: 13,686,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,551.50 : 28,075,776.21 = 9,125,280.78 : x
  2. Step 2: Convert to fraction form
    18,719,551.50/28,075,776.21 = 9,125,280.78/x
  3. Step 3: Cross multiply
    18,719,551.50x = 28,075,776.21 × 9,125,280.78
  4. Step 4: Simplify right side
    18,719,551.50x = 256,199,341,032,694.22
  5. Step 5: Solve for x
    x = 256,199,341,032,694.22/18,719,551.50
  6. Step 6: Final answer
    x = 13,686,190.13

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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.