Home / 518,477,357.80-777,716,036.70-211,667,501.80

Finding the Fourth Proportional to 518,477,357.80, 777,716,036.70 and 211,667,501.80

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Solution

The fourth proportional to 518,477,357.80, 777,716,036.70 and 211,667,501.80 is: 317,501,252.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,477,357.80 : 777,716,036.70 = 211,667,501.80 : x
  2. Step 2: Convert to fraction form
    518,477,357.80/777,716,036.70 = 211,667,501.80/x
  3. Step 3: Cross multiply
    518,477,357.80x = 777,716,036.70 × 211,667,501.80
  4. Step 4: Simplify right side
    518,477,357.80x = 164,617,210,598,086,144
  5. Step 5: Solve for x
    x = 164,617,210,598,086,144/518,477,357.80
  6. Step 6: Final answer
    x = 317,501,252.70

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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.