Home / 935,672,108.66-1,291,176,355.06-512,203,849.45

Finding the Fourth Proportional to 935,672,108.66, 1,291,176,355.06 and 512,203,849.45

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Solution

The fourth proportional to 935,672,108.66, 1,291,176,355.06 and 512,203,849.45 is: 706,813,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,672,108.66 : 1,291,176,355.06 = 512,203,849.45 : x
  2. Step 2: Convert to fraction form
    935,672,108.66/1,291,176,355.06 = 512,203,849.45/x
  3. Step 3: Cross multiply
    935,672,108.66x = 1,291,176,355.06 × 512,203,849.45
  4. Step 4: Simplify right side
    935,672,108.66x = 661,345,499,377,991,040
  5. Step 5: Solve for x
    x = 661,345,499,377,991,040/935,672,108.66
  6. Step 6: Final answer
    x = 706,813,309.13

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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.