Home / 698,279,442.12-1,046,233,840.59-421,348,735.50

Finding the Fourth Proportional to 698,279,442.12, 1,046,233,840.59 and 421,348,735.50

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Solution

The fourth proportional to 698,279,442.12, 1,046,233,840.59 and 421,348,735.50 is: 631,307,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,279,442.12 : 1,046,233,840.59 = 421,348,735.50 : x
  2. Step 2: Convert to fraction form
    698,279,442.12/1,046,233,840.59 = 421,348,735.50/x
  3. Step 3: Cross multiply
    698,279,442.12x = 1,046,233,840.59 × 421,348,735.50
  4. Step 4: Simplify right side
    698,279,442.12x = 440,829,305,774,537,472
  5. Step 5: Solve for x
    x = 440,829,305,774,537,472/698,279,442.12
  6. Step 6: Final answer
    x = 631,307,867.86

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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.