Home / 85,164,032.30-127,746,048.45-74,078,566.70

Finding the Fourth Proportional to 85,164,032.30, 127,746,048.45 and 74,078,566.70

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Solution

The fourth proportional to 85,164,032.30, 127,746,048.45 and 74,078,566.70 is: 111,117,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,164,032.30 : 127,746,048.45 = 74,078,566.70 : x
  2. Step 2: Convert to fraction form
    85,164,032.30/127,746,048.45 = 74,078,566.70/x
  3. Step 3: Cross multiply
    85,164,032.30x = 127,746,048.45 × 74,078,566.70
  4. Step 4: Simplify right side
    85,164,032.30x = 9,463,244,170,764,758
  5. Step 5: Solve for x
    x = 9,463,244,170,764,758/85,164,032.30
  6. Step 6: Final answer
    x = 111,117,850.05

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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.