Home / 99,878,405-149,817,607.50-28,074,821

Finding the Fourth Proportional to 99,878,405, 149,817,607.50 and 28,074,821

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Solution

The fourth proportional to 99,878,405, 149,817,607.50 and 28,074,821 is: 42,112,231.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,878,405 : 149,817,607.50 = 28,074,821 : x
  2. Step 2: Convert to fraction form
    99,878,405/149,817,607.50 = 28,074,821/x
  3. Step 3: Cross multiply
    99,878,405x = 149,817,607.50 × 28,074,821
  4. Step 4: Simplify right side
    99,878,405x = 4,206,102,513,210,757.50
  5. Step 5: Solve for x
    x = 4,206,102,513,210,757.50/99,878,405
  6. Step 6: Final answer
    x = 42,112,231.50

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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.