Home / 259,200,681.60-388,857,009.60-77,466,230.40

Finding the Fourth Proportional to 259,200,681.60, 388,857,009.60 and 77,466,230.40

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Solution

The fourth proportional to 259,200,681.60, 388,857,009.60 and 77,466,230.40 is: 116,216,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,200,681.60 : 388,857,009.60 = 77,466,230.40 : x
  2. Step 2: Convert to fraction form
    259,200,681.60/388,857,009.60 = 77,466,230.40/x
  3. Step 3: Cross multiply
    259,200,681.60x = 388,857,009.60 × 77,466,230.40
  4. Step 4: Simplify right side
    259,200,681.60x = 30,123,286,698,328,616
  5. Step 5: Solve for x
    x = 30,123,286,698,328,616/259,200,681.60
  6. Step 6: Final answer
    x = 116,216,078.26

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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.