Home / 490,128,305.40-735,192,458.10-179,235,320.40

Finding the Fourth Proportional to 490,128,305.40, 735,192,458.10 and 179,235,320.40

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Solution

The fourth proportional to 490,128,305.40, 735,192,458.10 and 179,235,320.40 is: 268,852,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,128,305.40 : 735,192,458.10 = 179,235,320.40 : x
  2. Step 2: Convert to fraction form
    490,128,305.40/735,192,458.10 = 179,235,320.40/x
  3. Step 3: Cross multiply
    490,128,305.40x = 735,192,458.10 × 179,235,320.40
  4. Step 4: Simplify right side
    490,128,305.40x = 131,772,455,783,217,088
  5. Step 5: Solve for x
    x = 131,772,455,783,217,088/490,128,305.40
  6. Step 6: Final answer
    x = 268,852,980.60

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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.