Home / 53,415,805.20-80,207,688.60-30,740,989.20

Finding the Fourth Proportional to 53,415,805.20, 80,207,688.60 and 30,740,989.20

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Solution

The fourth proportional to 53,415,805.20, 80,207,688.60 and 30,740,989.20 is: 46,159,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,415,805.20 : 80,207,688.60 = 30,740,989.20 : x
  2. Step 2: Convert to fraction form
    53,415,805.20/80,207,688.60 = 30,740,989.20/x
  3. Step 3: Cross multiply
    53,415,805.20x = 80,207,688.60 × 30,740,989.20
  4. Step 4: Simplify right side
    53,415,805.20x = 2,465,663,689,009,563
  5. Step 5: Solve for x
    x = 2,465,663,689,009,563/53,415,805.20
  6. Step 6: Final answer
    x = 46,159,815.05

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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.