Home / 329,242,778.40-493,863,908.16-99,211,865.76

Finding the Fourth Proportional to 329,242,778.40, 493,863,908.16 and 99,211,865.76

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Solution

The fourth proportional to 329,242,778.40, 493,863,908.16 and 99,211,865.76 is: 148,817,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,242,778.40 : 493,863,908.16 = 99,211,865.76 : x
  2. Step 2: Convert to fraction form
    329,242,778.40/493,863,908.16 = 99,211,865.76/x
  3. Step 3: Cross multiply
    329,242,778.40x = 493,863,908.16 × 99,211,865.76
  4. Step 4: Simplify right side
    329,242,778.40x = 48,997,159,760,078,896
  5. Step 5: Solve for x
    x = 48,997,159,760,078,896/329,242,778.40
  6. Step 6: Final answer
    x = 148,817,720.46

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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.