Home / 516,203,999.40-774,305,999.10-459,768,901.80

Finding the Fourth Proportional to 516,203,999.40, 774,305,999.10 and 459,768,901.80

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Solution

The fourth proportional to 516,203,999.40, 774,305,999.10 and 459,768,901.80 is: 689,653,352.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,203,999.40 : 774,305,999.10 = 459,768,901.80 : x
  2. Step 2: Convert to fraction form
    516,203,999.40/774,305,999.10 = 459,768,901.80/x
  3. Step 3: Cross multiply
    516,203,999.40x = 774,305,999.10 × 459,768,901.80
  4. Step 4: Simplify right side
    516,203,999.40x = 356,001,818,863,358,784
  5. Step 5: Solve for x
    x = 356,001,818,863,358,784/516,203,999.40
  6. Step 6: Final answer
    x = 689,653,352.70

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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.