Home / 509,523,285.60-763,151,187.60-418,824,021.60

Finding the Fourth Proportional to 509,523,285.60, 763,151,187.60 and 418,824,021.60

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Solution

The fourth proportional to 509,523,285.60, 763,151,187.60 and 418,824,021.60 is: 627,304,106.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,523,285.60 : 763,151,187.60 = 418,824,021.60 : x
  2. Step 2: Convert to fraction form
    509,523,285.60/763,151,187.60 = 418,824,021.60/x
  3. Step 3: Cross multiply
    509,523,285.60x = 763,151,187.60 × 418,824,021.60
  4. Step 4: Simplify right side
    509,523,285.60x = 319,626,049,479,448,064
  5. Step 5: Solve for x
    x = 319,626,049,479,448,064/509,523,285.60
  6. Step 6: Final answer
    x = 627,304,106.63

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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.