Home / 13,072,066.60-18,043,250.16-8,721,142.16

Finding the Fourth Proportional to 13,072,066.60, 18,043,250.16 and 8,721,142.16

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Solution

The fourth proportional to 13,072,066.60, 18,043,250.16 and 8,721,142.16 is: 12,037,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072,066.60 : 18,043,250.16 = 8,721,142.16 : x
  2. Step 2: Convert to fraction form
    13,072,066.60/18,043,250.16 = 8,721,142.16/x
  3. Step 3: Cross multiply
    13,072,066.60x = 18,043,250.16 × 8,721,142.16
  4. Step 4: Simplify right side
    13,072,066.60x = 157,357,749,673,802.75
  5. Step 5: Solve for x
    x = 157,357,749,673,802.75/13,072,066.60
  6. Step 6: Final answer
    x = 12,037,710.22

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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.