Home / 56,787,280.80-85,180,921.20-18,450,045.60

Finding the Fourth Proportional to 56,787,280.80, 85,180,921.20 and 18,450,045.60

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Solution

The fourth proportional to 56,787,280.80, 85,180,921.20 and 18,450,045.60 is: 27,675,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,787,280.80 : 85,180,921.20 = 18,450,045.60 : x
  2. Step 2: Convert to fraction form
    56,787,280.80/85,180,921.20 = 18,450,045.60/x
  3. Step 3: Cross multiply
    56,787,280.80x = 85,180,921.20 × 18,450,045.60
  4. Step 4: Simplify right side
    56,787,280.80x = 1,571,591,880,390,007
  5. Step 5: Solve for x
    x = 1,571,591,880,390,007/56,787,280.80
  6. Step 6: Final answer
    x = 27,675,068.40

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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.