Home / 38,742,330.04-53,465,428.42-21,101,901.57

Finding the Fourth Proportional to 38,742,330.04, 53,465,428.42 and 21,101,901.57

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Solution

The fourth proportional to 38,742,330.04, 53,465,428.42 and 21,101,901.57 is: 29,121,175.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742,330.04 : 53,465,428.42 = 21,101,901.57 : x
  2. Step 2: Convert to fraction form
    38,742,330.04/53,465,428.42 = 21,101,901.57/x
  3. Step 3: Cross multiply
    38,742,330.04x = 53,465,428.42 × 21,101,901.57
  4. Step 4: Simplify right side
    38,742,330.04x = 1,128,222,207,863,965.75
  5. Step 5: Solve for x
    x = 1,128,222,207,863,965.75/38,742,330.04
  6. Step 6: Final answer
    x = 29,121,175.90

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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.