Home / 288,687,002.40-433,030,503.60-280,183,946.40

Finding the Fourth Proportional to 288,687,002.40, 433,030,503.60 and 280,183,946.40

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Solution

The fourth proportional to 288,687,002.40, 433,030,503.60 and 280,183,946.40 is: 420,275,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,687,002.40 : 433,030,503.60 = 280,183,946.40 : x
  2. Step 2: Convert to fraction form
    288,687,002.40/433,030,503.60 = 280,183,946.40/x
  3. Step 3: Cross multiply
    288,687,002.40x = 433,030,503.60 × 280,183,946.40
  4. Step 4: Simplify right side
    288,687,002.40x = 121,328,195,410,227,408
  5. Step 5: Solve for x
    x = 121,328,195,410,227,408/288,687,002.40
  6. Step 6: Final answer
    x = 420,275,919.60

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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.