Home / 15,362,383.06-21,200,516.40-8,487,308.02

Finding the Fourth Proportional to 15,362,383.06, 21,200,516.40 and 8,487,308.02

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Solution

The fourth proportional to 15,362,383.06, 21,200,516.40 and 8,487,308.02 is: 11,712,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362,383.06 : 21,200,516.40 = 8,487,308.02 : x
  2. Step 2: Convert to fraction form
    15,362,383.06/21,200,516.40 = 8,487,308.02/x
  3. Step 3: Cross multiply
    15,362,383.06x = 21,200,516.40 × 8,487,308.02
  4. Step 4: Simplify right side
    15,362,383.06x = 179,935,312,869,861.50
  5. Step 5: Solve for x
    x = 179,935,312,869,861.50/15,362,383.06
  6. Step 6: Final answer
    x = 11,712,721.40

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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.