Home / 7,158,163-9,878,264.94-3,938,899

Finding the Fourth Proportional to 7,158,163, 9,878,264.94 and 3,938,899

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Solution

The fourth proportional to 7,158,163, 9,878,264.94 and 3,938,899 is: 5,435,680.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158,163 : 9,878,264.94 = 3,938,899 : x
  2. Step 2: Convert to fraction form
    7,158,163/9,878,264.94 = 3,938,899/x
  3. Step 3: Cross multiply
    7,158,163x = 9,878,264.94 × 3,938,899
  4. Step 4: Simplify right side
    7,158,163x = 38,909,487,893,901.05
  5. Step 5: Solve for x
    x = 38,909,487,893,901.05/7,158,163
  6. Step 6: Final answer
    x = 5,435,680.62

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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.