Home / 7,027,030.80-10,540,721.16-1,978,307.28

Finding the Fourth Proportional to 7,027,030.80, 10,540,721.16 and 1,978,307.28

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Solution

The fourth proportional to 7,027,030.80, 10,540,721.16 and 1,978,307.28 is: 2,967,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,027,030.80 : 10,540,721.16 = 1,978,307.28 : x
  2. Step 2: Convert to fraction form
    7,027,030.80/10,540,721.16 = 1,978,307.28/x
  3. Step 3: Cross multiply
    7,027,030.80x = 10,540,721.16 × 1,978,307.28
  4. Step 4: Simplify right side
    7,027,030.80x = 20,852,785,407,278.05
  5. Step 5: Solve for x
    x = 20,852,785,407,278.05/7,027,030.80
  6. Step 6: Final answer
    x = 2,967,510.18

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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.