Home / 731,951,875.28-1,010,111,138.62-397,438,495.68

Finding the Fourth Proportional to 731,951,875.28, 1,010,111,138.62 and 397,438,495.68

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Solution

The fourth proportional to 731,951,875.28, 1,010,111,138.62 and 397,438,495.68 is: 548,474,653.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,951,875.28 : 1,010,111,138.62 = 397,438,495.68 : x
  2. Step 2: Convert to fraction form
    731,951,875.28/1,010,111,138.62 = 397,438,495.68/x
  3. Step 3: Cross multiply
    731,951,875.28x = 1,010,111,138.62 × 397,438,495.68
  4. Step 4: Simplify right side
    731,951,875.28x = 401,457,051,402,744,768
  5. Step 5: Solve for x
    x = 401,457,051,402,744,768/731,951,875.28
  6. Step 6: Final answer
    x = 548,474,653.81

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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.