Home / 538,525,721.70-807,788,582.55-210,892,345.20

Finding the Fourth Proportional to 538,525,721.70, 807,788,582.55 and 210,892,345.20

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Solution

The fourth proportional to 538,525,721.70, 807,788,582.55 and 210,892,345.20 is: 316,338,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,525,721.70 : 807,788,582.55 = 210,892,345.20 : x
  2. Step 2: Convert to fraction form
    538,525,721.70/807,788,582.55 = 210,892,345.20/x
  3. Step 3: Cross multiply
    538,525,721.70x = 807,788,582.55 × 210,892,345.20
  4. Step 4: Simplify right side
    538,525,721.70x = 170,356,428,599,753,280
  5. Step 5: Solve for x
    x = 170,356,428,599,753,280/538,525,721.70
  6. Step 6: Final answer
    x = 316,338,517.80

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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.