Home / 538,525,666.20-807,788,499.30-210,892,289.70

Finding the Fourth Proportional to 538,525,666.20, 807,788,499.30 and 210,892,289.70

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Solution

The fourth proportional to 538,525,666.20, 807,788,499.30 and 210,892,289.70 is: 316,338,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,525,666.20 : 807,788,499.30 = 210,892,289.70 : x
  2. Step 2: Convert to fraction form
    538,525,666.20/807,788,499.30 = 210,892,289.70/x
  3. Step 3: Cross multiply
    538,525,666.20x = 807,788,499.30 × 210,892,289.70
  4. Step 4: Simplify right side
    538,525,666.20x = 170,356,366,210,703,840
  5. Step 5: Solve for x
    x = 170,356,366,210,703,840/538,525,666.20
  6. Step 6: Final answer
    x = 316,338,434.55

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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.