Home / 939,841,280.33-1,296,904,928.81-543,389,706.05

Finding the Fourth Proportional to 939,841,280.33, 1,296,904,928.81 and 543,389,706.05

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Solution

The fourth proportional to 939,841,280.33, 1,296,904,928.81 and 543,389,706.05 is: 749,833,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,841,280.33 : 1,296,904,928.81 = 543,389,706.05 : x
  2. Step 2: Convert to fraction form
    939,841,280.33/1,296,904,928.81 = 543,389,706.05/x
  3. Step 3: Cross multiply
    939,841,280.33x = 1,296,904,928.81 × 543,389,706.05
  4. Step 4: Simplify right side
    939,841,280.33x = 704,724,788,031,660,544
  5. Step 5: Solve for x
    x = 704,724,788,031,660,544/939,841,280.33
  6. Step 6: Final answer
    x = 749,833,831.29

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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.