Home / 12,172,031,998.80-18,258,047,998.20-11,349,692,005.20

Finding the Fourth Proportional to 12,172,031,998.80, 18,258,047,998.20 and 11,349,692,005.20

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Solution

The fourth proportional to 12,172,031,998.80, 18,258,047,998.20 and 11,349,692,005.20 is: 17,024,538,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172,031,998.80 : 18,258,047,998.20 = 11,349,692,005.20 : x
  2. Step 2: Convert to fraction form
    12,172,031,998.80/18,258,047,998.20 = 11,349,692,005.20/x
  3. Step 3: Cross multiply
    12,172,031,998.80x = 18,258,047,998.20 × 11,349,692,005.20
  4. Step 4: Simplify right side
    12,172,031,998.80x = 207,223,221,395,728,433,152
  5. Step 5: Solve for x
    x = 207,223,221,395,728,433,152/12,172,031,998.80
  6. Step 6: Final answer
    x = 17,024,538,007.80

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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.