Home / 3,090,689.16-4,266,040.64-1,866,800.20

Finding the Fourth Proportional to 3,090,689.16, 4,266,040.64 and 1,866,800.20

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Solution

The fourth proportional to 3,090,689.16, 4,266,040.64 and 1,866,800.20 is: 2,576,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090,689.16 : 4,266,040.64 = 1,866,800.20 : x
  2. Step 2: Convert to fraction form
    3,090,689.16/4,266,040.64 = 1,866,800.20/x
  3. Step 3: Cross multiply
    3,090,689.16x = 4,266,040.64 × 1,866,800.20
  4. Step 4: Simplify right side
    3,090,689.16x = 7,963,845,519,960.13
  5. Step 5: Solve for x
    x = 7,963,845,519,960.13/3,090,689.16
  6. Step 6: Final answer
    x = 2,576,721.60

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1.5x scale

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.