Home / 68,197,912.40-102,361,541.88-42,211,607.52

Finding the Fourth Proportional to 68,197,912.40, 102,361,541.88 and 42,211,607.52

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Solution

The fourth proportional to 68,197,912.40, 102,361,541.88 and 42,211,607.52 is: 63,357,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,197,912.40 : 102,361,541.88 = 42,211,607.52 : x
  2. Step 2: Convert to fraction form
    68,197,912.40/102,361,541.88 = 42,211,607.52/x
  3. Step 3: Cross multiply
    68,197,912.40x = 102,361,541.88 × 42,211,607.52
  4. Step 4: Simplify right side
    68,197,912.40x = 4,320,845,230,980,603
  5. Step 5: Solve for x
    x = 4,320,845,230,980,603/68,197,912.40
  6. Step 6: Final answer
    x = 63,357,441.29

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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.