Home / 38,515,780.74-53,152,419.60-20,875,246.77

Finding the Fourth Proportional to 38,515,780.74, 53,152,419.60 and 20,875,246.77

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Solution

The fourth proportional to 38,515,780.74, 53,152,419.60 and 20,875,246.77 is: 28,808,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515,780.74 : 53,152,419.60 = 20,875,246.77 : x
  2. Step 2: Convert to fraction form
    38,515,780.74/53,152,419.60 = 20,875,246.77/x
  3. Step 3: Cross multiply
    38,515,780.74x = 53,152,419.60 × 20,875,246.77
  4. Step 4: Simplify right side
    38,515,780.74x = 1,109,569,875,572,584.75
  5. Step 5: Solve for x
    x = 1,109,569,875,572,584.75/38,515,780.74
  6. Step 6: Final answer
    x = 28,808,188.60

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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.