Home / 486,347,721.25-729,566,428.85-158,824,950.91

Finding the Fourth Proportional to 486,347,721.25, 729,566,428.85 and 158,824,950.91

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Solution

The fourth proportional to 486,347,721.25, 729,566,428.85 and 158,824,950.91 is: 238,252,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,347,721.25 : 729,566,428.85 = 158,824,950.91 : x
  2. Step 2: Convert to fraction form
    486,347,721.25/729,566,428.85 = 158,824,950.91/x
  3. Step 3: Cross multiply
    486,347,721.25x = 729,566,428.85 × 158,824,950.91
  4. Step 4: Simplify right side
    486,347,721.25x = 115,873,352,243,243,312
  5. Step 5: Solve for x
    x = 115,873,352,243,243,312/486,347,721.25
  6. Step 6: Final answer
    x = 238,252,071.89

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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.