Home / 215,619,397.44-323,393,663.52-77,416,393.92

Finding the Fourth Proportional to 215,619,397.44, 323,393,663.52 and 77,416,393.92

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Solution

The fourth proportional to 215,619,397.44, 323,393,663.52 and 77,416,393.92 is: 116,111,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,619,397.44 : 323,393,663.52 = 77,416,393.92 : x
  2. Step 2: Convert to fraction form
    215,619,397.44/323,393,663.52 = 77,416,393.92/x
  3. Step 3: Cross multiply
    215,619,397.44x = 323,393,663.52 × 77,416,393.92
  4. Step 4: Simplify right side
    215,619,397.44x = 25,035,971,246,296,252
  5. Step 5: Solve for x
    x = 25,035,971,246,296,252/215,619,397.44
  6. Step 6: Final answer
    x = 116,111,869.08

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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.