Home / 685,967,111.02-946,643,222.82-372,706,556.50

Finding the Fourth Proportional to 685,967,111.02, 946,643,222.82 and 372,706,556.50

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Solution

The fourth proportional to 685,967,111.02, 946,643,222.82 and 372,706,556.50 is: 514,339,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,967,111.02 : 946,643,222.82 = 372,706,556.50 : x
  2. Step 2: Convert to fraction form
    685,967,111.02/946,643,222.82 = 372,706,556.50/x
  3. Step 3: Cross multiply
    685,967,111.02x = 946,643,222.82 × 372,706,556.50
  4. Step 4: Simplify right side
    685,967,111.02x = 352,820,135,811,304,448
  5. Step 5: Solve for x
    x = 352,820,135,811,304,448/685,967,111.02
  6. Step 6: Final answer
    x = 514,339,725.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.