Home / 38,702,465.70-53,409,411.42-21,298,810.92

Finding the Fourth Proportional to 38,702,465.70, 53,409,411.42 and 21,298,810.92

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Solution

The fourth proportional to 38,702,465.70, 53,409,411.42 and 21,298,810.92 is: 29,392,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,702,465.70 : 53,409,411.42 = 21,298,810.92 : x
  2. Step 2: Convert to fraction form
    38,702,465.70/53,409,411.42 = 21,298,810.92/x
  3. Step 3: Cross multiply
    38,702,465.70x = 53,409,411.42 × 21,298,810.92
  4. Step 4: Simplify right side
    38,702,465.70x = 1,137,556,955,183,068.75
  5. Step 5: Solve for x
    x = 1,137,556,955,183,068.75/38,702,465.70
  6. Step 6: Final answer
    x = 29,392,363.89

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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.