Home / 698,279,443.86-1,046,233,843.21-421,348,737.25

Finding the Fourth Proportional to 698,279,443.86, 1,046,233,843.21 and 421,348,737.25

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Solution

The fourth proportional to 698,279,443.86, 1,046,233,843.21 and 421,348,737.25 is: 631,307,870.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,279,443.86 : 1,046,233,843.21 = 421,348,737.25 : x
  2. Step 2: Convert to fraction form
    698,279,443.86/1,046,233,843.21 = 421,348,737.25/x
  3. Step 3: Cross multiply
    698,279,443.86x = 1,046,233,843.21 × 421,348,737.25
  4. Step 4: Simplify right side
    698,279,443.86x = 440,829,308,704,748,032
  5. Step 5: Solve for x
    x = 440,829,308,704,748,032/698,279,443.86
  6. Step 6: Final answer
    x = 631,307,870.48

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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.