Home / 38,742,802.20-53,465,428.62-21,339,211.32

Finding the Fourth Proportional to 38,742,802.20, 53,465,428.62 and 21,339,211.32

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Solution

The fourth proportional to 38,742,802.20, 53,465,428.62 and 21,339,211.32 is: 29,448,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742,802.20 : 53,465,428.62 = 21,339,211.32 : x
  2. Step 2: Convert to fraction form
    38,742,802.20/53,465,428.62 = 21,339,211.32/x
  3. Step 3: Cross multiply
    38,742,802.20x = 53,465,428.62 × 21,339,211.32
  4. Step 4: Simplify right side
    38,742,802.20x = 1,140,910,079,636,556
  5. Step 5: Solve for x
    x = 1,140,910,079,636,556/38,742,802.20
  6. Step 6: Final answer
    x = 29,448,310.78

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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.