Home / 15,406,723.16-21,261,018.20-8,531,057.60

Finding the Fourth Proportional to 15,406,723.16, 21,261,018.20 and 8,531,057.60

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Solution

The fourth proportional to 15,406,723.16, 21,261,018.20 and 8,531,057.60 is: 11,772,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,723.16 : 21,261,018.20 = 8,531,057.60 : x
  2. Step 2: Convert to fraction form
    15,406,723.16/21,261,018.20 = 8,531,057.60/x
  3. Step 3: Cross multiply
    15,406,723.16x = 21,261,018.20 × 8,531,057.60
  4. Step 4: Simplify right side
    15,406,723.16x = 181,378,970,898,848.31
  5. Step 5: Solve for x
    x = 181,378,970,898,848.31/15,406,723.16
  6. Step 6: Final answer
    x = 11,772,715.65

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1.5x scale

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.