Home / 939,967,342.95-1,297,186,033.43-516,596,010.97

Finding the Fourth Proportional to 939,967,342.95, 1,297,186,033.43 and 516,596,010.97

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Solution

The fourth proportional to 939,967,342.95, 1,297,186,033.43 and 516,596,010.97 is: 712,919,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,967,342.95 : 1,297,186,033.43 = 516,596,010.97 : x
  2. Step 2: Convert to fraction form
    939,967,342.95/1,297,186,033.43 = 516,596,010.97/x
  3. Step 3: Cross multiply
    939,967,342.95x = 1,297,186,033.43 × 516,596,010.97
  4. Step 4: Simplify right side
    939,967,342.95x = 670,121,130,355,935,104
  5. Step 5: Solve for x
    x = 670,121,130,355,935,104/939,967,342.95
  6. Step 6: Final answer
    x = 712,919,587.45

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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.