Home / 74,728,620.78-112,097,658.69-31,589,783.34

Finding the Fourth Proportional to 74,728,620.78, 112,097,658.69 and 31,589,783.34

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Solution

The fourth proportional to 74,728,620.78, 112,097,658.69 and 31,589,783.34 is: 47,386,673.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,728,620.78 : 112,097,658.69 = 31,589,783.34 : x
  2. Step 2: Convert to fraction form
    74,728,620.78/112,097,658.69 = 31,589,783.34/x
  3. Step 3: Cross multiply
    74,728,620.78x = 112,097,658.69 × 31,589,783.34
  4. Step 4: Simplify right side
    74,728,620.78x = 3,541,140,750,938,368
  5. Step 5: Solve for x
    x = 3,541,140,750,938,368/74,728,620.78
  6. Step 6: Final answer
    x = 47,386,673.46

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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.