Home / 511,013,361.79-766,526,189.47-142,525,876.68

Finding the Fourth Proportional to 511,013,361.79, 766,526,189.47 and 142,525,876.68

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Solution

The fourth proportional to 511,013,361.79, 766,526,189.47 and 142,525,876.68 is: 213,790,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,013,361.79 : 766,526,189.47 = 142,525,876.68 : x
  2. Step 2: Convert to fraction form
    511,013,361.79/766,526,189.47 = 142,525,876.68/x
  3. Step 3: Cross multiply
    511,013,361.79x = 766,526,189.47 × 142,525,876.68
  4. Step 4: Simplify right side
    511,013,361.79x = 109,249,817,152,391,552
  5. Step 5: Solve for x
    x = 109,249,817,152,391,552/511,013,361.79
  6. Step 6: Final answer
    x = 213,790,529.41

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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.