Home / 74,890,634.40-112,335,951.60-42,642,007.20

Finding the Fourth Proportional to 74,890,634.40, 112,335,951.60 and 42,642,007.20

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Solution

The fourth proportional to 74,890,634.40, 112,335,951.60 and 42,642,007.20 is: 63,963,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890,634.40 : 112,335,951.60 = 42,642,007.20 : x
  2. Step 2: Convert to fraction form
    74,890,634.40/112,335,951.60 = 42,642,007.20/x
  3. Step 3: Cross multiply
    74,890,634.40x = 112,335,951.60 × 42,642,007.20
  4. Step 4: Simplify right side
    74,890,634.40x = 4,790,230,456,946,052
  5. Step 5: Solve for x
    x = 4,790,230,456,946,052/74,890,634.40
  6. Step 6: Final answer
    x = 63,963,010.80

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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.