Home / 145,154,197.60-217,749,958.80-72,408,162.40

Finding the Fourth Proportional to 145,154,197.60, 217,749,958.80 and 72,408,162.40

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Solution

The fourth proportional to 145,154,197.60, 217,749,958.80 and 72,408,162.40 is: 108,621,553.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,154,197.60 : 217,749,958.80 = 72,408,162.40 : x
  2. Step 2: Convert to fraction form
    145,154,197.60/217,749,958.80 = 72,408,162.40/x
  3. Step 3: Cross multiply
    145,154,197.60x = 217,749,958.80 × 72,408,162.40
  4. Step 4: Simplify right side
    145,154,197.60x = 15,766,874,379,383,712
  5. Step 5: Solve for x
    x = 15,766,874,379,383,712/145,154,197.60
  6. Step 6: Final answer
    x = 108,621,553.08

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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.