Home / 15,196,011,289.81-20,970,497,569.89-8,422,267,187.92

Finding the Fourth Proportional to 15,196,011,289.81, 20,970,497,569.89 and 8,422,267,187.92

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Solution

The fourth proportional to 15,196,011,289.81, 20,970,497,569.89 and 8,422,267,187.92 is: 11,622,729,822.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,011,289.81 : 20,970,497,569.89 = 8,422,267,187.92 : x
  2. Step 2: Convert to fraction form
    15,196,011,289.81/20,970,497,569.89 = 8,422,267,187.92/x
  3. Step 3: Cross multiply
    15,196,011,289.81x = 20,970,497,569.89 × 8,422,267,187.92
  4. Step 4: Simplify right side
    15,196,011,289.81x = 176,619,133,597,240,655,872
  5. Step 5: Solve for x
    x = 176,619,133,597,240,655,872/15,196,011,289.81
  6. Step 6: Final answer
    x = 11,622,729,822.24

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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.