Home / 12,165,765,169.59-18,256,324,124.39-5,178,564,709.11

Finding the Fourth Proportional to 12,165,765,169.59, 18,256,324,124.39 and 5,178,564,709.11

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Solution

The fourth proportional to 12,165,765,169.59, 18,256,324,124.39 and 5,178,564,709.11 is: 7,771,114,641.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,765,169.59 : 18,256,324,124.39 = 5,178,564,709.11 : x
  2. Step 2: Convert to fraction form
    12,165,765,169.59/18,256,324,124.39 = 5,178,564,709.11/x
  3. Step 3: Cross multiply
    12,165,765,169.59x = 18,256,324,124.39 × 5,178,564,709.11
  4. Step 4: Simplify right side
    12,165,765,169.59x = 94,541,555,828,613,660,672
  5. Step 5: Solve for x
    x = 94,541,555,828,613,660,672/12,165,765,169.59
  6. Step 6: Final answer
    x = 7,771,114,641.02

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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.