Home / 220,855,434.80-331,280,041.80-99,686,692.40

Finding the Fourth Proportional to 220,855,434.80, 331,280,041.80 and 99,686,692.40

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Solution

The fourth proportional to 220,855,434.80, 331,280,041.80 and 99,686,692.40 is: 149,528,634.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,855,434.80 : 331,280,041.80 = 99,686,692.40 : x
  2. Step 2: Convert to fraction form
    220,855,434.80/331,280,041.80 = 99,686,692.40/x
  3. Step 3: Cross multiply
    220,855,434.80x = 331,280,041.80 × 99,686,692.40
  4. Step 4: Simplify right side
    220,855,434.80x = 33,024,211,625,175,744
  5. Step 5: Solve for x
    x = 33,024,211,625,175,744/220,855,434.80
  6. Step 6: Final answer
    x = 149,528,634.67

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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.