Home / 790,355,389.95-1,185,535,687.73-200,145,306.51

Finding the Fourth Proportional to 790,355,389.95, 1,185,535,687.73 and 200,145,306.51

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Solution

The fourth proportional to 790,355,389.95, 1,185,535,687.73 and 200,145,306.51 is: 300,218,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,355,389.95 : 1,185,535,687.73 = 200,145,306.51 : x
  2. Step 2: Convert to fraction form
    790,355,389.95/1,185,535,687.73 = 200,145,306.51/x
  3. Step 3: Cross multiply
    790,355,389.95x = 1,185,535,687.73 × 200,145,306.51
  4. Step 4: Simplify right side
    790,355,389.95x = 237,279,403,598,263,744
  5. Step 5: Solve for x
    x = 237,279,403,598,263,744/790,355,389.95
  6. Step 6: Final answer
    x = 300,218,618.88

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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.