Home / 876,274,702.70-1,209,254,654.49-479,790,488.66

Finding the Fourth Proportional to 876,274,702.70, 1,209,254,654.49 and 479,790,488.66

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Solution

The fourth proportional to 876,274,702.70, 1,209,254,654.49 and 479,790,488.66 is: 662,108,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,274,702.70 : 1,209,254,654.49 = 479,790,488.66 : x
  2. Step 2: Convert to fraction form
    876,274,702.70/1,209,254,654.49 = 479,790,488.66/x
  3. Step 3: Cross multiply
    876,274,702.70x = 1,209,254,654.49 × 479,790,488.66
  4. Step 4: Simplify right side
    876,274,702.70x = 580,188,881,592,136,576
  5. Step 5: Solve for x
    x = 580,188,881,592,136,576/876,274,702.70
  6. Step 6: Final answer
    x = 662,108,445.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.