Home / 280,544,541,247.38-420,774,292,840.32-76,353,639,700.53

Finding the Fourth Proportional to 280,544,541,247.38, 420,774,292,840.32 and 76,353,639,700.53

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Solution

The fourth proportional to 280,544,541,247.38, 420,774,292,840.32 and 76,353,639,700.53 is: 114,518,887,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,544,541,247.38 : 420,774,292,840.32 = 76,353,639,700.53 : x
  2. Step 2: Convert to fraction form
    280,544,541,247.38/420,774,292,840.32 = 76,353,639,700.53/x
  3. Step 3: Cross multiply
    280,544,541,247.38x = 420,774,292,840.32 × 76,353,639,700.53
  4. Step 4: Simplify right side
    280,544,541,247.38x = 32,127,648,750,775,092,379,648
  5. Step 5: Solve for x
    x = 32,127,648,750,775,092,379,648/280,544,541,247.38
  6. Step 6: Final answer
    x = 114,518,887,474.79

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1.5x scale

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.