Home / 118,277,812.48-163,162,243.20-74,842,942.72

Finding the Fourth Proportional to 118,277,812.48, 163,162,243.20 and 74,842,942.72

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Solution

The fourth proportional to 118,277,812.48, 163,162,243.20 and 74,842,942.72 is: 103,244,574.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,277,812.48 : 163,162,243.20 = 74,842,942.72 : x
  2. Step 2: Convert to fraction form
    118,277,812.48/163,162,243.20 = 74,842,942.72/x
  3. Step 3: Cross multiply
    118,277,812.48x = 163,162,243.20 × 74,842,942.72
  4. Step 4: Simplify right side
    118,277,812.48x = 12,211,542,421,884,308
  5. Step 5: Solve for x
    x = 12,211,542,421,884,308/118,277,812.48
  6. Step 6: Final answer
    x = 103,244,574.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.