Home / 68,352,015.20-102,528,022.80-42,871,618.40

Finding the Fourth Proportional to 68,352,015.20, 102,528,022.80 and 42,871,618.40

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Solution

The fourth proportional to 68,352,015.20, 102,528,022.80 and 42,871,618.40 is: 64,307,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352,015.20 : 102,528,022.80 = 42,871,618.40 : x
  2. Step 2: Convert to fraction form
    68,352,015.20/102,528,022.80 = 42,871,618.40/x
  3. Step 3: Cross multiply
    68,352,015.20x = 102,528,022.80 × 42,871,618.40
  4. Step 4: Simplify right side
    68,352,015.20x = 4,395,542,268,788,099
  5. Step 5: Solve for x
    x = 4,395,542,268,788,099/68,352,015.20
  6. Step 6: Final answer
    x = 64,307,427.60

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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.