Home / 428,501,362,956.72-591,331,977,402.10-235,813,535,882.51

Finding the Fourth Proportional to 428,501,362,956.72, 591,331,977,402.10 and 235,813,535,882.51

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Solution

The fourth proportional to 428,501,362,956.72, 591,331,977,402.10 and 235,813,535,882.51 is: 325,422,732,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,362,956.72 : 591,331,977,402.10 = 235,813,535,882.51 : x
  2. Step 2: Convert to fraction form
    428,501,362,956.72/591,331,977,402.10 = 235,813,535,882.51/x
  3. Step 3: Cross multiply
    428,501,362,956.72x = 591,331,977,402.10 × 235,813,535,882.51
  4. Step 4: Simplify right side
    428,501,362,956.72x = 139,444,084,471,585,707,130,880
  5. Step 5: Solve for x
    x = 139,444,084,471,585,707,130,880/428,501,362,956.72
  6. Step 6: Final answer
    x = 325,422,732,635.91

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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.