Home / 853,959,702.33-1,281,099,904.20-387,653,855.13

Finding the Fourth Proportional to 853,959,702.33, 1,281,099,904.20 and 387,653,855.13

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Solution

The fourth proportional to 853,959,702.33, 1,281,099,904.20 and 387,653,855.13 is: 581,553,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,959,702.33 : 1,281,099,904.20 = 387,653,855.13 : x
  2. Step 2: Convert to fraction form
    853,959,702.33/1,281,099,904.20 = 387,653,855.13/x
  3. Step 3: Cross multiply
    853,959,702.33x = 1,281,099,904.20 × 387,653,855.13
  4. Step 4: Simplify right side
    853,959,702.33x = 496,623,316,669,803,712
  5. Step 5: Solve for x
    x = 496,623,316,669,803,712/853,959,702.33
  6. Step 6: Final answer
    x = 581,553,573.68

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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.