Home / 820,796,207.90-1,231,402,186.22-238,517,955.50

Finding the Fourth Proportional to 820,796,207.90, 1,231,402,186.22 and 238,517,955.50

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Solution

The fourth proportional to 820,796,207.90, 1,231,402,186.22 and 238,517,955.50 is: 357,837,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,796,207.90 : 1,231,402,186.22 = 238,517,955.50 : x
  2. Step 2: Convert to fraction form
    820,796,207.90/1,231,402,186.22 = 238,517,955.50/x
  3. Step 3: Cross multiply
    820,796,207.90x = 1,231,402,186.22 × 238,517,955.50
  4. Step 4: Simplify right side
    820,796,207.90x = 293,711,531,848,075,072
  5. Step 5: Solve for x
    x = 293,711,531,848,075,072/820,796,207.90
  6. Step 6: Final answer
    x = 357,837,340.16

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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.