Home / 2,989,336.61-4,123,443.35-2,130,174.47

Finding the Fourth Proportional to 2,989,336.61, 4,123,443.35 and 2,130,174.47

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Solution

The fourth proportional to 2,989,336.61, 4,123,443.35 and 2,130,174.47 is: 2,938,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,336.61 : 4,123,443.35 = 2,130,174.47 : x
  2. Step 2: Convert to fraction form
    2,989,336.61/4,123,443.35 = 2,130,174.47/x
  3. Step 3: Cross multiply
    2,989,336.61x = 4,123,443.35 × 2,130,174.47
  4. Step 4: Simplify right side
    2,989,336.61x = 8,783,653,721,393.19
  5. Step 5: Solve for x
    x = 8,783,653,721,393.19/2,989,336.61
  6. Step 6: Final answer
    x = 2,938,328.76

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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.