Home / 15,406,511.35-21,260,725.80-8,530,845.79

Finding the Fourth Proportional to 15,406,511.35, 21,260,725.80 and 8,530,845.79

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Solution

The fourth proportional to 15,406,511.35, 21,260,725.80 and 8,530,845.79 is: 11,772,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,511.35 : 21,260,725.80 = 8,530,845.79 : x
  2. Step 2: Convert to fraction form
    15,406,511.35/21,260,725.80 = 8,530,845.79/x
  3. Step 3: Cross multiply
    15,406,511.35x = 21,260,725.80 × 8,530,845.79
  4. Step 4: Simplify right side
    15,406,511.35x = 181,371,973,183,274.38
  5. Step 5: Solve for x
    x = 181,371,973,183,274.38/15,406,511.35
  6. Step 6: Final answer
    x = 11,772,423.30

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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.