Home / 399,641,287.49-551,476,979.52-232,365,681.27

Finding the Fourth Proportional to 399,641,287.49, 551,476,979.52 and 232,365,681.27

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Solution

The fourth proportional to 399,641,287.49, 551,476,979.52 and 232,365,681.27 is: 320,648,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,641,287.49 : 551,476,979.52 = 232,365,681.27 : x
  2. Step 2: Convert to fraction form
    399,641,287.49/551,476,979.52 = 232,365,681.27/x
  3. Step 3: Cross multiply
    399,641,287.49x = 551,476,979.52 × 232,365,681.27
  4. Step 4: Simplify right side
    399,641,287.49x = 128,144,324,050,886,640
  5. Step 5: Solve for x
    x = 128,144,324,050,886,640/399,641,287.49
  6. Step 6: Final answer
    x = 320,648,361.58

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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.