Home / 8,078,128.32-11,147,848.40-4,407,127.36

Finding the Fourth Proportional to 8,078,128.32, 11,147,848.40 and 4,407,127.36

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Solution

The fourth proportional to 8,078,128.32, 11,147,848.40 and 4,407,127.36 is: 6,081,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078,128.32 : 11,147,848.40 = 4,407,127.36 : x
  2. Step 2: Convert to fraction form
    8,078,128.32/11,147,848.40 = 4,407,127.36/x
  3. Step 3: Cross multiply
    8,078,128.32x = 11,147,848.40 × 4,407,127.36
  4. Step 4: Simplify right side
    8,078,128.32x = 49,129,987,688,772.23
  5. Step 5: Solve for x
    x = 49,129,987,688,772.23/8,078,128.32
  6. Step 6: Final answer
    x = 6,081,852.84

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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.