Home / 253,125,670.44-379,723,798.98-78,262,980.60

Finding the Fourth Proportional to 253,125,670.44, 379,723,798.98 and 78,262,980.60

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Solution

The fourth proportional to 253,125,670.44, 379,723,798.98 and 78,262,980.60 is: 117,405,383.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,125,670.44 : 379,723,798.98 = 78,262,980.60 : x
  2. Step 2: Convert to fraction form
    253,125,670.44/379,723,798.98 = 78,262,980.60/x
  3. Step 3: Cross multiply
    253,125,670.44x = 379,723,798.98 × 78,262,980.60
  4. Step 4: Simplify right side
    253,125,670.44x = 29,718,316,312,930,040
  5. Step 5: Solve for x
    x = 29,718,316,312,930,040/253,125,670.44
  6. Step 6: Final answer
    x = 117,405,383.11

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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.