Home / 7,719,220.50-10,645,551.81-4,818,879.42

Finding the Fourth Proportional to 7,719,220.50, 10,645,551.81 and 4,818,879.42

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Solution

The fourth proportional to 7,719,220.50, 10,645,551.81 and 4,818,879.42 is: 6,645,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719,220.50 : 10,645,551.81 = 4,818,879.42 : x
  2. Step 2: Convert to fraction form
    7,719,220.50/10,645,551.81 = 4,818,879.42/x
  3. Step 3: Cross multiply
    7,719,220.50x = 10,645,551.81 × 4,818,879.42
  4. Step 4: Simplify right side
    7,719,220.50x = 51,299,630,531,752.75
  5. Step 5: Solve for x
    x = 51,299,630,531,752.75/7,719,220.50
  6. Step 6: Final answer
    x = 6,645,700.89

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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.