Home / 8,578,728.90-11,838,602.85-4,658,450

Finding the Fourth Proportional to 8,578,728.90, 11,838,602.85 and 4,658,450

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Solution

The fourth proportional to 8,578,728.90, 11,838,602.85 and 4,658,450 is: 6,428,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,728.90 : 11,838,602.85 = 4,658,450 : x
  2. Step 2: Convert to fraction form
    8,578,728.90/11,838,602.85 = 4,658,450/x
  3. Step 3: Cross multiply
    8,578,728.90x = 11,838,602.85 × 4,658,450
  4. Step 4: Simplify right side
    8,578,728.90x = 55,149,539,458,228.62
  5. Step 5: Solve for x
    x = 55,149,539,458,228.62/8,578,728.90
  6. Step 6: Final answer
    x = 6,428,637.64

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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.