Home / 7,121,783.52-9,831,467.34-4,065,407.28

Finding the Fourth Proportional to 7,121,783.52, 9,831,467.34 and 4,065,407.28

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Solution

The fourth proportional to 7,121,783.52, 9,831,467.34 and 4,065,407.28 is: 5,612,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,783.52 : 9,831,467.34 = 4,065,407.28 : x
  2. Step 2: Convert to fraction form
    7,121,783.52/9,831,467.34 = 4,065,407.28/x
  3. Step 3: Cross multiply
    7,121,783.52x = 9,831,467.34 × 4,065,407.28
  4. Step 4: Simplify right side
    7,121,783.52x = 39,968,918,897,118.23
  5. Step 5: Solve for x
    x = 39,968,918,897,118.23/7,121,783.52
  6. Step 6: Final answer
    x = 5,612,206.38

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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.