Home / 727,147,513.76-1,003,488,330.96-430,044,438.56

Finding the Fourth Proportional to 727,147,513.76, 1,003,488,330.96 and 430,044,438.56

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Solution

The fourth proportional to 727,147,513.76, 1,003,488,330.96 and 430,044,438.56 is: 593,475,969.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,147,513.76 : 1,003,488,330.96 = 430,044,438.56 : x
  2. Step 2: Convert to fraction form
    727,147,513.76/1,003,488,330.96 = 430,044,438.56/x
  3. Step 3: Cross multiply
    727,147,513.76x = 1,003,488,330.96 × 430,044,438.56
  4. Step 4: Simplify right side
    727,147,513.76x = 431,544,575,889,204,672
  5. Step 5: Solve for x
    x = 431,544,575,889,204,672/727,147,513.76
  6. Step 6: Final answer
    x = 593,475,969.76

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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.