Home / 18,645,955,913.75-25,736,206,743.95-12,144,248,913.32

Finding the Fourth Proportional to 18,645,955,913.75, 25,736,206,743.95 and 12,144,248,913.32

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Solution

The fourth proportional to 18,645,955,913.75, 25,736,206,743.95 and 12,144,248,913.32 is: 16,762,181,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645,955,913.75 : 25,736,206,743.95 = 12,144,248,913.32 : x
  2. Step 2: Convert to fraction form
    18,645,955,913.75/25,736,206,743.95 = 12,144,248,913.32/x
  3. Step 3: Cross multiply
    18,645,955,913.75x = 25,736,206,743.95 × 12,144,248,913.32
  4. Step 4: Simplify right side
    18,645,955,913.75x = 312,546,900,783,192,211,456
  5. Step 5: Solve for x
    x = 312,546,900,783,192,211,456/18,645,955,913.75
  6. Step 6: Final answer
    x = 16,762,181,688.57

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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.