Home / 511,013,360.79-766,526,187.97-142,525,875.68

Finding the Fourth Proportional to 511,013,360.79, 766,526,187.97 and 142,525,875.68

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Solution

The fourth proportional to 511,013,360.79, 766,526,187.97 and 142,525,875.68 is: 213,790,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,013,360.79 : 766,526,187.97 = 142,525,875.68 : x
  2. Step 2: Convert to fraction form
    511,013,360.79/766,526,187.97 = 142,525,875.68/x
  3. Step 3: Cross multiply
    511,013,360.79x = 766,526,187.97 × 142,525,875.68
  4. Step 4: Simplify right side
    511,013,360.79x = 109,249,816,171,295,120
  5. Step 5: Solve for x
    x = 109,249,816,171,295,120/511,013,360.79
  6. Step 6: Final answer
    x = 213,790,527.91

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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.