Home / 18,911,232,005.80-28,366,848,008.70-5,124,943,877.80

Finding the Fourth Proportional to 18,911,232,005.80, 28,366,848,008.70 and 5,124,943,877.80

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Solution

The fourth proportional to 18,911,232,005.80, 28,366,848,008.70 and 5,124,943,877.80 is: 7,687,415,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,232,005.80 : 28,366,848,008.70 = 5,124,943,877.80 : x
  2. Step 2: Convert to fraction form
    18,911,232,005.80/28,366,848,008.70 = 5,124,943,877.80/x
  3. Step 3: Cross multiply
    18,911,232,005.80x = 28,366,848,008.70 × 5,124,943,877.80
  4. Step 4: Simplify right side
    18,911,232,005.80x = 145,378,504,034,670,198,784
  5. Step 5: Solve for x
    x = 145,378,504,034,670,198,784/18,911,232,005.80
  6. Step 6: Final answer
    x = 7,687,415,816.70

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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.