Home / 1,209,153,920,753.90-1,813,737,661,551.40-403,318,649,105.40

Finding the Fourth Proportional to 1,209,153,920,753.90, 1,813,737,661,551.40 and 403,318,649,105.40

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Solution

The fourth proportional to 1,209,153,920,753.90, 1,813,737,661,551.40 and 403,318,649,105.40 is: 604,980,235,297.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,153,920,753.90 : 1,813,737,661,551.40 = 403,318,649,105.40 : x
  2. Step 2: Convert to fraction form
    1,209,153,920,753.90/1,813,737,661,551.40 = 403,318,649,105.40/x
  3. Step 3: Cross multiply
    1,209,153,920,753.90x = 1,813,737,661,551.40 × 403,318,649,105.40
  4. Step 4: Simplify right side
    1,209,153,920,753.90x = 731,514,223,488,497,860,214,784
  5. Step 5: Solve for x
    x = 731,514,223,488,497,860,214,784/1,209,153,920,753.90
  6. Step 6: Final answer
    x = 604,980,235,297.43

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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.