Home / 30,426,638.76-45,654,720.42-13,385,097.40

Finding the Fourth Proportional to 30,426,638.76, 45,654,720.42 and 13,385,097.40

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Solution

The fourth proportional to 30,426,638.76, 45,654,720.42 and 13,385,097.40 is: 20,084,140.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426,638.76 : 45,654,720.42 = 13,385,097.40 : x
  2. Step 2: Convert to fraction form
    30,426,638.76/45,654,720.42 = 13,385,097.40/x
  3. Step 3: Cross multiply
    30,426,638.76x = 45,654,720.42 × 13,385,097.40
  4. Step 4: Simplify right side
    30,426,638.76x = 611,092,879,591,469
  5. Step 5: Solve for x
    x = 611,092,879,591,469/30,426,638.76
  6. Step 6: Final answer
    x = 20,084,140.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.