Home / 280,544,541,216.45-420,774,292,794.03-76,353,639,669.68

Finding the Fourth Proportional to 280,544,541,216.45, 420,774,292,794.03 and 76,353,639,669.68

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Solution

The fourth proportional to 280,544,541,216.45, 420,774,292,794.03 and 76,353,639,669.68 is: 114,518,887,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,544,541,216.45 : 420,774,292,794.03 = 76,353,639,669.68 : x
  2. Step 2: Convert to fraction form
    280,544,541,216.45/420,774,292,794.03 = 76,353,639,669.68/x
  3. Step 3: Cross multiply
    280,544,541,216.45x = 420,774,292,794.03 × 76,353,639,669.68
  4. Step 4: Simplify right side
    280,544,541,216.45x = 32,127,648,734,259,793,887,232
  5. Step 5: Solve for x
    x = 32,127,648,734,259,793,887,232/280,544,541,216.45
  6. Step 6: Final answer
    x = 114,518,887,428.55

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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.