Home / 820,796,210.15-1,231,402,189.59-238,517,957.75

Finding the Fourth Proportional to 820,796,210.15, 1,231,402,189.59 and 238,517,957.75

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Solution

The fourth proportional to 820,796,210.15, 1,231,402,189.59 and 238,517,957.75 is: 357,837,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,796,210.15 : 1,231,402,189.59 = 238,517,957.75 : x
  2. Step 2: Convert to fraction form
    820,796,210.15/1,231,402,189.59 = 238,517,957.75/x
  3. Step 3: Cross multiply
    820,796,210.15x = 1,231,402,189.59 × 238,517,957.75
  4. Step 4: Simplify right side
    820,796,210.15x = 293,711,535,423,728,064
  5. Step 5: Solve for x
    x = 293,711,535,423,728,064/820,796,210.15
  6. Step 6: Final answer
    x = 357,837,343.54

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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.