Home / 428,501,362,971.29-591,331,977,422.11-235,813,535,896.98

Finding the Fourth Proportional to 428,501,362,971.29, 591,331,977,422.11 and 235,813,535,896.98

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Solution

The fourth proportional to 428,501,362,971.29, 591,331,977,422.11 and 235,813,535,896.98 is: 325,422,732,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,362,971.29 : 591,331,977,422.11 = 235,813,535,896.98 : x
  2. Step 2: Convert to fraction form
    428,501,362,971.29/591,331,977,422.11 = 235,813,535,896.98/x
  3. Step 3: Cross multiply
    428,501,362,971.29x = 591,331,977,422.11 × 235,813,535,896.98
  4. Step 4: Simplify right side
    428,501,362,971.29x = 139,444,084,484,860,914,171,904
  5. Step 5: Solve for x
    x = 139,444,084,484,860,914,171,904/428,501,362,971.29
  6. Step 6: Final answer
    x = 325,422,732,655.82

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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.