Home / 217,905,176.72-300,698,275.77-123,806,894.33

Finding the Fourth Proportional to 217,905,176.72, 300,698,275.77 and 123,806,894.33

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Solution

The fourth proportional to 217,905,176.72, 300,698,275.77 and 123,806,894.33 is: 170,847,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,905,176.72 : 300,698,275.77 = 123,806,894.33 : x
  2. Step 2: Convert to fraction form
    217,905,176.72/300,698,275.77 = 123,806,894.33/x
  3. Step 3: Cross multiply
    217,905,176.72x = 300,698,275.77 × 123,806,894.33
  4. Step 4: Simplify right side
    217,905,176.72x = 37,228,519,652,182,280
  5. Step 5: Solve for x
    x = 37,228,519,652,182,280/217,905,176.72
  6. Step 6: Final answer
    x = 170,847,339.26

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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.