Home / 287,827,275.92-397,201,637.97-155,668,268.64

Finding the Fourth Proportional to 287,827,275.92, 397,201,637.97 and 155,668,268.64

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Solution

The fourth proportional to 287,827,275.92, 397,201,637.97 and 155,668,268.64 is: 214,822,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,827,275.92 : 397,201,637.97 = 155,668,268.64 : x
  2. Step 2: Convert to fraction form
    287,827,275.92/397,201,637.97 = 155,668,268.64/x
  3. Step 3: Cross multiply
    287,827,275.92x = 397,201,637.97 × 155,668,268.64
  4. Step 4: Simplify right side
    287,827,275.92x = 61,831,691,283,761,984
  5. Step 5: Solve for x
    x = 61,831,691,283,761,984/287,827,275.92
  6. Step 6: Final answer
    x = 214,822,209.21

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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.