Home / 145,436,564.20-218,154,846.30-91,017,005.80

Finding the Fourth Proportional to 145,436,564.20, 218,154,846.30 and 91,017,005.80

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Solution

The fourth proportional to 145,436,564.20, 218,154,846.30 and 91,017,005.80 is: 136,525,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,436,564.20 : 218,154,846.30 = 91,017,005.80 : x
  2. Step 2: Convert to fraction form
    145,436,564.20/218,154,846.30 = 91,017,005.80/x
  3. Step 3: Cross multiply
    145,436,564.20x = 218,154,846.30 × 91,017,005.80
  4. Step 4: Simplify right side
    145,436,564.20x = 19,855,800,910,985,208
  5. Step 5: Solve for x
    x = 19,855,800,910,985,208/145,436,564.20
  6. Step 6: Final answer
    x = 136,525,508.70

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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.