Home / 99,873,005.20-149,809,507.80-28,069,421.20

Finding the Fourth Proportional to 99,873,005.20, 149,809,507.80 and 28,069,421.20

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Solution

The fourth proportional to 99,873,005.20, 149,809,507.80 and 28,069,421.20 is: 42,104,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,873,005.20 : 149,809,507.80 = 28,069,421.20 : x
  2. Step 2: Convert to fraction form
    99,873,005.20/149,809,507.80 = 28,069,421.20/x
  3. Step 3: Cross multiply
    99,873,005.20x = 149,809,507.80 × 28,069,421.20
  4. Step 4: Simplify right side
    99,873,005.20x = 4,205,066,174,202,885.50
  5. Step 5: Solve for x
    x = 4,205,066,174,202,885.50/99,873,005.20
  6. Step 6: Final answer
    x = 42,104,131.80

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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.