Home / 516,096,539.80-774,144,809.70-388,694,555.80

Finding the Fourth Proportional to 516,096,539.80, 774,144,809.70 and 388,694,555.80

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Solution

The fourth proportional to 516,096,539.80, 774,144,809.70 and 388,694,555.80 is: 583,041,833.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,096,539.80 : 774,144,809.70 = 388,694,555.80 : x
  2. Step 2: Convert to fraction form
    516,096,539.80/774,144,809.70 = 388,694,555.80/x
  3. Step 3: Cross multiply
    516,096,539.80x = 774,144,809.70 × 388,694,555.80
  4. Step 4: Simplify right side
    516,096,539.80x = 300,905,872,931,217,088
  5. Step 5: Solve for x
    x = 300,905,872,931,217,088/516,096,539.80
  6. Step 6: Final answer
    x = 583,041,833.70

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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.