Home / 626,545,738.73-863,769,154.70-499,816,547.17

Finding the Fourth Proportional to 626,545,738.73, 863,769,154.70 and 499,816,547.17

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Solution

The fourth proportional to 626,545,738.73, 863,769,154.70 and 499,816,547.17 is: 689,057,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,545,738.73 : 863,769,154.70 = 499,816,547.17 : x
  2. Step 2: Convert to fraction form
    626,545,738.73/863,769,154.70 = 499,816,547.17/x
  3. Step 3: Cross multiply
    626,545,738.73x = 863,769,154.70 × 499,816,547.17
  4. Step 4: Simplify right side
    626,545,738.73x = 431,726,116,456,384,768
  5. Step 5: Solve for x
    x = 431,726,116,456,384,768/626,545,738.73
  6. Step 6: Final answer
    x = 689,057,621.44

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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.