Home / 710,076,912.57-979,907,466.96-396,811,126.89

Finding the Fourth Proportional to 710,076,912.57, 979,907,466.96 and 396,811,126.89

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Solution

The fourth proportional to 710,076,912.57, 979,907,466.96 and 396,811,126.89 is: 547,600,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,076,912.57 : 979,907,466.96 = 396,811,126.89 : x
  2. Step 2: Convert to fraction form
    710,076,912.57/979,907,466.96 = 396,811,126.89/x
  3. Step 3: Cross multiply
    710,076,912.57x = 979,907,466.96 × 396,811,126.89
  4. Step 4: Simplify right side
    710,076,912.57x = 388,838,186,212,323,072
  5. Step 5: Solve for x
    x = 388,838,186,212,323,072/710,076,912.57
  6. Step 6: Final answer
    x = 547,600,097.02

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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.