Home / 6,989,957.12-9,643,507.68-4,088,420.48

Finding the Fourth Proportional to 6,989,957.12, 9,643,507.68 and 4,088,420.48

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Solution

The fourth proportional to 6,989,957.12, 9,643,507.68 and 4,088,420.48 is: 5,640,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989,957.12 : 9,643,507.68 = 4,088,420.48 : x
  2. Step 2: Convert to fraction form
    6,989,957.12/9,643,507.68 = 4,088,420.48/x
  3. Step 3: Cross multiply
    6,989,957.12x = 9,643,507.68 × 4,088,420.48
  4. Step 4: Simplify right side
    6,989,957.12x = 39,426,714,297,949.28
  5. Step 5: Solve for x
    x = 39,426,714,297,949.28/6,989,957.12
  6. Step 6: Final answer
    x = 5,640,480.14

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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.