Home / 12,127,645,344.60-18,191,468,016.90-11,964,386,669.40

Finding the Fourth Proportional to 12,127,645,344.60, 18,191,468,016.90 and 11,964,386,669.40

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Solution

The fourth proportional to 12,127,645,344.60, 18,191,468,016.90 and 11,964,386,669.40 is: 17,946,580,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,645,344.60 : 18,191,468,016.90 = 11,964,386,669.40 : x
  2. Step 2: Convert to fraction form
    12,127,645,344.60/18,191,468,016.90 = 11,964,386,669.40/x
  3. Step 3: Cross multiply
    12,127,645,344.60x = 18,191,468,016.90 × 11,964,386,669.40
  4. Step 4: Simplify right side
    12,127,645,344.60x = 217,649,757,438,214,832,128
  5. Step 5: Solve for x
    x = 217,649,757,438,214,832,128/12,127,645,344.60
  6. Step 6: Final answer
    x = 17,946,580,004.10

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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.