Home / 111,702,005.10-167,553,007.65-77,264,628.30

Finding the Fourth Proportional to 111,702,005.10, 167,553,007.65 and 77,264,628.30

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Solution

The fourth proportional to 111,702,005.10, 167,553,007.65 and 77,264,628.30 is: 115,896,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,702,005.10 : 167,553,007.65 = 77,264,628.30 : x
  2. Step 2: Convert to fraction form
    111,702,005.10/167,553,007.65 = 77,264,628.30/x
  3. Step 3: Cross multiply
    111,702,005.10x = 167,553,007.65 × 77,264,628.30
  4. Step 4: Simplify right side
    111,702,005.10x = 12,945,920,856,624,306
  5. Step 5: Solve for x
    x = 12,945,920,856,624,306/111,702,005.10
  6. Step 6: Final answer
    x = 115,896,942.45

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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.