Home / 288,176,469.60-432,264,704.40-72,765,717.60

Finding the Fourth Proportional to 288,176,469.60, 432,264,704.40 and 72,765,717.60

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Solution

The fourth proportional to 288,176,469.60, 432,264,704.40 and 72,765,717.60 is: 109,148,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,176,469.60 : 432,264,704.40 = 72,765,717.60 : x
  2. Step 2: Convert to fraction form
    288,176,469.60/432,264,704.40 = 72,765,717.60/x
  3. Step 3: Cross multiply
    288,176,469.60x = 432,264,704.40 × 72,765,717.60
  4. Step 4: Simplify right side
    288,176,469.60x = 31,454,051,408,817,872
  5. Step 5: Solve for x
    x = 31,454,051,408,817,872/288,176,469.60
  6. Step 6: Final answer
    x = 109,148,576.40

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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.