Home / 13,291,465,568.64-18,347,870,214.72-8,281,688,178.48

Finding the Fourth Proportional to 13,291,465,568.64, 18,347,870,214.72 and 8,281,688,178.48

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Solution

The fourth proportional to 13,291,465,568.64, 18,347,870,214.72 and 8,281,688,178.48 is: 11,432,248,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,465,568.64 : 18,347,870,214.72 = 8,281,688,178.48 : x
  2. Step 2: Convert to fraction form
    13,291,465,568.64/18,347,870,214.72 = 8,281,688,178.48/x
  3. Step 3: Cross multiply
    13,291,465,568.64x = 18,347,870,214.72 × 8,281,688,178.48
  4. Step 4: Simplify right side
    13,291,465,568.64x = 151,951,339,857,531,928,576
  5. Step 5: Solve for x
    x = 151,951,339,857,531,928,576/13,291,465,568.64
  6. Step 6: Final answer
    x = 11,432,248,691.68

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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.