Home / 538,525,657.20-807,788,485.80-210,892,280.70

Finding the Fourth Proportional to 538,525,657.20, 807,788,485.80 and 210,892,280.70

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Solution

The fourth proportional to 538,525,657.20, 807,788,485.80 and 210,892,280.70 is: 316,338,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,525,657.20 : 807,788,485.80 = 210,892,280.70 : x
  2. Step 2: Convert to fraction form
    538,525,657.20/807,788,485.80 = 210,892,280.70/x
  3. Step 3: Cross multiply
    538,525,657.20x = 807,788,485.80 × 210,892,280.70
  4. Step 4: Simplify right side
    538,525,657.20x = 170,356,356,093,561,536
  5. Step 5: Solve for x
    x = 170,356,356,093,561,536/538,525,657.20
  6. Step 6: Final answer
    x = 316,338,421.05

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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.