Home / 38,742,051.38-53,466,456.65-21,338,390.16

Finding the Fourth Proportional to 38,742,051.38, 53,466,456.65 and 21,338,390.16

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Solution

The fourth proportional to 38,742,051.38, 53,466,456.65 and 21,338,390.16 is: 29,448,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742,051.38 : 53,466,456.65 = 21,338,390.16 : x
  2. Step 2: Convert to fraction form
    38,742,051.38/53,466,456.65 = 21,338,390.16/x
  3. Step 3: Cross multiply
    38,742,051.38x = 53,466,456.65 × 21,338,390.16
  4. Step 4: Simplify right side
    38,742,051.38x = 1,140,888,112,363,734.75
  5. Step 5: Solve for x
    x = 1,140,888,112,363,734.75/38,742,051.38
  6. Step 6: Final answer
    x = 29,448,314.48

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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.