Home / 39,869,918.01-55,020,485.25-21,535,203.51

Finding the Fourth Proportional to 39,869,918.01, 55,020,485.25 and 21,535,203.51

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Solution

The fourth proportional to 39,869,918.01, 55,020,485.25 and 21,535,203.51 is: 29,718,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,869,918.01 : 55,020,485.25 = 21,535,203.51 : x
  2. Step 2: Convert to fraction form
    39,869,918.01/55,020,485.25 = 21,535,203.51/x
  3. Step 3: Cross multiply
    39,869,918.01x = 55,020,485.25 × 21,535,203.51
  4. Step 4: Simplify right side
    39,869,918.01x = 1,184,877,347,077,703.25
  5. Step 5: Solve for x
    x = 1,184,877,347,077,703.25/39,869,918.01
  6. Step 6: Final answer
    x = 29,718,579.98

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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.