Home / 5,280,218.51-7,920,260.85-1,685,939.90

Finding the Fourth Proportional to 5,280,218.51, 7,920,260.85 and 1,685,939.90

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Solution

The fourth proportional to 5,280,218.51, 7,920,260.85 and 1,685,939.90 is: 2,528,888.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,218.51 : 7,920,260.85 = 1,685,939.90 : x
  2. Step 2: Convert to fraction form
    5,280,218.51/7,920,260.85 = 1,685,939.90/x
  3. Step 3: Cross multiply
    5,280,218.51x = 7,920,260.85 × 1,685,939.90
  4. Step 4: Simplify right side
    5,280,218.51x = 13,353,083,785,422.91
  5. Step 5: Solve for x
    x = 13,353,083,785,422.91/5,280,218.51
  6. Step 6: Final answer
    x = 2,528,888.48

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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.