Home / 641,456,162.51-885,209,504.01-348,100,730.51

Finding the Fourth Proportional to 641,456,162.51, 885,209,504.01 and 348,100,730.51

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Solution

The fourth proportional to 641,456,162.51, 885,209,504.01 and 348,100,730.51 is: 480,379,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,456,162.51 : 885,209,504.01 = 348,100,730.51 : x
  2. Step 2: Convert to fraction form
    641,456,162.51/885,209,504.01 = 348,100,730.51/x
  3. Step 3: Cross multiply
    641,456,162.51x = 885,209,504.01 × 348,100,730.51
  4. Step 4: Simplify right side
    641,456,162.51x = 308,142,075,000,275,776
  5. Step 5: Solve for x
    x = 308,142,075,000,275,776/641,456,162.51
  6. Step 6: Final answer
    x = 480,379,007.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.