Home / 28,106,961,249.90-42,158,890,004.86-20,551,488,482.33

Finding the Fourth Proportional to 28,106,961,249.90, 42,158,890,004.86 and 20,551,488,482.33

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Solution

The fourth proportional to 28,106,961,249.90, 42,158,890,004.86 and 20,551,488,482.33 is: 30,826,098,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,961,249.90 : 42,158,890,004.86 = 20,551,488,482.33 : x
  2. Step 2: Convert to fraction form
    28,106,961,249.90/42,158,890,004.86 = 20,551,488,482.33/x
  3. Step 3: Cross multiply
    28,106,961,249.90x = 42,158,890,004.86 × 20,551,488,482.33
  4. Step 4: Simplify right side
    28,106,961,249.90x = 866,427,942,362,697,695,232
  5. Step 5: Solve for x
    x = 866,427,942,362,697,695,232/28,106,961,249.90
  6. Step 6: Final answer
    x = 30,826,098,013.91

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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.