Home / 688,383,369.65-949,963,790.81-375,116,614.85

Finding the Fourth Proportional to 688,383,369.65, 949,963,790.81 and 375,116,614.85

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Solution

The fourth proportional to 688,383,369.65, 949,963,790.81 and 375,116,614.85 is: 517,658,062.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,383,369.65 : 949,963,790.81 = 375,116,614.85 : x
  2. Step 2: Convert to fraction form
    688,383,369.65/949,963,790.81 = 375,116,614.85/x
  3. Step 3: Cross multiply
    688,383,369.65x = 949,963,790.81 × 375,116,614.85
  4. Step 4: Simplify right side
    688,383,369.65x = 356,347,201,432,095,360
  5. Step 5: Solve for x
    x = 356,347,201,432,095,360/688,383,369.65
  6. Step 6: Final answer
    x = 517,658,062.56

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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.