Home / 908,960,012.80-1,363,440,019.20-630,815,603.20

Finding the Fourth Proportional to 908,960,012.80, 1,363,440,019.20 and 630,815,603.20

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Solution

The fourth proportional to 908,960,012.80, 1,363,440,019.20 and 630,815,603.20 is: 946,223,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,960,012.80 : 1,363,440,019.20 = 630,815,603.20 : x
  2. Step 2: Convert to fraction form
    908,960,012.80/1,363,440,019.20 = 630,815,603.20/x
  3. Step 3: Cross multiply
    908,960,012.80x = 1,363,440,019.20 × 630,815,603.20
  4. Step 4: Simplify right side
    908,960,012.80x = 860,079,238,138,667,648
  5. Step 5: Solve for x
    x = 860,079,238,138,667,648/908,960,012.80
  6. Step 6: Final answer
    x = 946,223,404.80

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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.