Home / 611,988,246.86-918,252,814.70-320,785,741.40

Finding the Fourth Proportional to 611,988,246.86, 918,252,814.70 and 320,785,741.40

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Solution

The fourth proportional to 611,988,246.86, 918,252,814.70 and 320,785,741.40 is: 481,320,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,988,246.86 : 918,252,814.70 = 320,785,741.40 : x
  2. Step 2: Convert to fraction form
    611,988,246.86/918,252,814.70 = 320,785,741.40/x
  3. Step 3: Cross multiply
    611,988,246.86x = 918,252,814.70 × 320,785,741.40
  4. Step 4: Simplify right side
    611,988,246.86x = 294,562,409,952,387,008
  5. Step 5: Solve for x
    x = 294,562,409,952,387,008/611,988,246.86
  6. Step 6: Final answer
    x = 481,320,370.88

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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.