Home / 402,787,374,034.72-555,848,833,879.02-229,172,509,279.85

Finding the Fourth Proportional to 402,787,374,034.72, 555,848,833,879.02 and 229,172,509,279.85

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Solution

The fourth proportional to 402,787,374,034.72, 555,848,833,879.02 and 229,172,509,279.85 is: 316,259,347,368.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,787,374,034.72 : 555,848,833,879.02 = 229,172,509,279.85 : x
  2. Step 2: Convert to fraction form
    402,787,374,034.72/555,848,833,879.02 = 229,172,509,279.85/x
  3. Step 3: Cross multiply
    402,787,374,034.72x = 555,848,833,879.02 × 229,172,509,279.85
  4. Step 4: Simplify right side
    402,787,374,034.72x = 127,385,272,040,333,523,288,064
  5. Step 5: Solve for x
    x = 127,385,272,040,333,523,288,064/402,787,374,034.72
  6. Step 6: Final answer
    x = 316,259,347,368.11

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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.