Home / 1,431,127,209.25-2,146,738,643.76-395,901,398.89

Finding the Fourth Proportional to 1,431,127,209.25, 2,146,738,643.76 and 395,901,398.89

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Solution

The fourth proportional to 1,431,127,209.25, 2,146,738,643.76 and 395,901,398.89 is: 593,865,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,127,209.25 : 2,146,738,643.76 = 395,901,398.89 : x
  2. Step 2: Convert to fraction form
    1,431,127,209.25/2,146,738,643.76 = 395,901,398.89/x
  3. Step 3: Cross multiply
    1,431,127,209.25x = 2,146,738,643.76 × 395,901,398.89
  4. Step 4: Simplify right side
    1,431,127,209.25x = 849,896,832,105,071,616
  5. Step 5: Solve for x
    x = 849,896,832,105,071,616/1,431,127,209.25
  6. Step 6: Final answer
    x = 593,865,329.80

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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.