Home / 53,152,007.20-79,728,010.80-52,648,122.40

Finding the Fourth Proportional to 53,152,007.20, 79,728,010.80 and 52,648,122.40

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Solution

The fourth proportional to 53,152,007.20, 79,728,010.80 and 52,648,122.40 is: 78,972,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,152,007.20 : 79,728,010.80 = 52,648,122.40 : x
  2. Step 2: Convert to fraction form
    53,152,007.20/79,728,010.80 = 52,648,122.40/x
  3. Step 3: Cross multiply
    53,152,007.20x = 79,728,010.80 × 52,648,122.40
  4. Step 4: Simplify right side
    53,152,007.20x = 4,197,530,071,306,921.50
  5. Step 5: Solve for x
    x = 4,197,530,071,306,921.50/53,152,007.20
  6. Step 6: Final answer
    x = 78,972,183.60

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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.