Home / 313,619,665,901.40-470,429,472,907.60-86,979,115,002.94

Finding the Fourth Proportional to 313,619,665,901.40, 470,429,472,907.60 and 86,979,115,002.94

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Solution

The fourth proportional to 313,619,665,901.40, 470,429,472,907.60 and 86,979,115,002.94 is: 130,468,665,308.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,619,665,901.40 : 470,429,472,907.60 = 86,979,115,002.94 : x
  2. Step 2: Convert to fraction form
    313,619,665,901.40/470,429,472,907.60 = 86,979,115,002.94/x
  3. Step 3: Cross multiply
    313,619,665,901.40x = 470,429,472,907.60 × 86,979,115,002.94
  4. Step 4: Simplify right side
    313,619,665,901.40x = 40,917,539,224,801,647,788,032
  5. Step 5: Solve for x
    x = 40,917,539,224,801,647,788,032/313,619,665,901.40
  6. Step 6: Final answer
    x = 130,468,665,308.97

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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.