Home / 12,127,645,407.10-18,191,468,110.65-11,964,386,731.90

Finding the Fourth Proportional to 12,127,645,407.10, 18,191,468,110.65 and 11,964,386,731.90

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Solution

The fourth proportional to 12,127,645,407.10, 18,191,468,110.65 and 11,964,386,731.90 is: 17,946,580,097.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,645,407.10 : 18,191,468,110.65 = 11,964,386,731.90 : x
  2. Step 2: Convert to fraction form
    12,127,645,407.10/18,191,468,110.65 = 11,964,386,731.90/x
  3. Step 3: Cross multiply
    12,127,645,407.10x = 18,191,468,110.65 × 11,964,386,731.90
  4. Step 4: Simplify right side
    12,127,645,407.10x = 217,649,759,696,842,817,536
  5. Step 5: Solve for x
    x = 217,649,759,696,842,817,536/12,127,645,407.10
  6. Step 6: Final answer
    x = 17,946,580,097.85

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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.