Home / 15,406,690.87-21,260,973-8,531,025.31

Finding the Fourth Proportional to 15,406,690.87, 21,260,973 and 8,531,025.31

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Solution

The fourth proportional to 15,406,690.87, 21,260,973 and 8,531,025.31 is: 11,772,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,690.87 : 21,260,973 = 8,531,025.31 : x
  2. Step 2: Convert to fraction form
    15,406,690.87/21,260,973 = 8,531,025.31/x
  3. Step 3: Cross multiply
    15,406,690.87x = 21,260,973 × 8,531,025.31
  4. Step 4: Simplify right side
    15,406,690.87x = 181,377,898,778,226.66
  5. Step 5: Solve for x
    x = 181,377,898,778,226.66/15,406,690.87
  6. Step 6: Final answer
    x = 11,772,670.74

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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.