Home / 38,742,491.28-53,485,155.72-30,021,085.20

Finding the Fourth Proportional to 38,742,491.28, 53,485,155.72 and 30,021,085.20

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Solution

The fourth proportional to 38,742,491.28, 53,485,155.72 and 30,021,085.20 is: 41,444,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742,491.28 : 53,485,155.72 = 30,021,085.20 : x
  2. Step 2: Convert to fraction form
    38,742,491.28/53,485,155.72 = 30,021,085.20/x
  3. Step 3: Cross multiply
    38,742,491.28x = 53,485,155.72 × 30,021,085.20
  4. Step 4: Simplify right side
    38,742,491.28x = 1,605,682,416,805,387.25
  5. Step 5: Solve for x
    x = 1,605,682,416,805,387.25/38,742,491.28
  6. Step 6: Final answer
    x = 41,444,996.53

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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.