Home / 403,709,012.33-557,118,351.47-218,070,032.81

Finding the Fourth Proportional to 403,709,012.33, 557,118,351.47 and 218,070,032.81

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Solution

The fourth proportional to 403,709,012.33, 557,118,351.47 and 218,070,032.81 is: 300,936,599.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,709,012.33 : 557,118,351.47 = 218,070,032.81 : x
  2. Step 2: Convert to fraction form
    403,709,012.33/557,118,351.47 = 218,070,032.81/x
  3. Step 3: Cross multiply
    403,709,012.33x = 557,118,351.47 × 218,070,032.81
  4. Step 4: Simplify right side
    403,709,012.33x = 121,490,817,181,875,584
  5. Step 5: Solve for x
    x = 121,490,817,181,875,584/403,709,012.33
  6. Step 6: Final answer
    x = 300,936,599.07

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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.