Home / 13,291,465,571.64-18,347,870,218.86-8,281,688,181.48

Finding the Fourth Proportional to 13,291,465,571.64, 18,347,870,218.86 and 8,281,688,181.48

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Solution

The fourth proportional to 13,291,465,571.64, 18,347,870,218.86 and 8,281,688,181.48 is: 11,432,248,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,465,571.64 : 18,347,870,218.86 = 8,281,688,181.48 : x
  2. Step 2: Convert to fraction form
    13,291,465,571.64/18,347,870,218.86 = 8,281,688,181.48/x
  3. Step 3: Cross multiply
    13,291,465,571.64x = 18,347,870,218.86 × 8,281,688,181.48
  4. Step 4: Simplify right side
    13,291,465,571.64x = 151,951,339,946,861,723,648
  5. Step 5: Solve for x
    x = 151,951,339,946,861,723,648/13,291,465,571.64
  6. Step 6: Final answer
    x = 11,432,248,695.82

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1.5x scale

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.