Home / 749,057,851.76-1,122,359,804.76-398,932,186.16

Finding the Fourth Proportional to 749,057,851.76, 1,122,359,804.76 and 398,932,186.16

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Solution

The fourth proportional to 749,057,851.76, 1,122,359,804.76 and 398,932,186.16 is: 597,744,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,057,851.76 : 1,122,359,804.76 = 398,932,186.16 : x
  2. Step 2: Convert to fraction form
    749,057,851.76/1,122,359,804.76 = 398,932,186.16/x
  3. Step 3: Cross multiply
    749,057,851.76x = 1,122,359,804.76 × 398,932,186.16
  4. Step 4: Simplify right side
    749,057,851.76x = 447,745,450,571,017,600
  5. Step 5: Solve for x
    x = 447,745,450,571,017,600/749,057,851.76
  6. Step 6: Final answer
    x = 597,744,819.73

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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.