Home / 698,279,442.86-1,046,233,841.72-421,348,736.25

Finding the Fourth Proportional to 698,279,442.86, 1,046,233,841.72 and 421,348,736.25

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Solution

The fourth proportional to 698,279,442.86, 1,046,233,841.72 and 421,348,736.25 is: 631,307,868.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,279,442.86 : 1,046,233,841.72 = 421,348,736.25 : x
  2. Step 2: Convert to fraction form
    698,279,442.86/1,046,233,841.72 = 421,348,736.25/x
  3. Step 3: Cross multiply
    698,279,442.86x = 1,046,233,841.72 × 421,348,736.25
  4. Step 4: Simplify right side
    698,279,442.86x = 440,829,307,028,597,824
  5. Step 5: Solve for x
    x = 440,829,307,028,597,824/698,279,442.86
  6. Step 6: Final answer
    x = 631,307,868.98

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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.