Home / 215,865,011.88-323,820,199.44-70,309,907.28

Finding the Fourth Proportional to 215,865,011.88, 323,820,199.44 and 70,309,907.28

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Solution

The fourth proportional to 215,865,011.88, 323,820,199.44 and 70,309,907.28 is: 105,472,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,865,011.88 : 323,820,199.44 = 70,309,907.28 : x
  2. Step 2: Convert to fraction form
    215,865,011.88/323,820,199.44 = 70,309,907.28/x
  3. Step 3: Cross multiply
    215,865,011.88x = 323,820,199.44 × 70,309,907.28
  4. Step 4: Simplify right side
    215,865,011.88x = 22,767,768,198,017,508
  5. Step 5: Solve for x
    x = 22,767,768,198,017,508/215,865,011.88
  6. Step 6: Final answer
    x = 105,472,248.60

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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.