Home / 13,831,939.15-20,748,905.25-5,312,275.62

Finding the Fourth Proportional to 13,831,939.15, 20,748,905.25 and 5,312,275.62

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Solution

The fourth proportional to 13,831,939.15, 20,748,905.25 and 5,312,275.62 is: 7,968,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831,939.15 : 20,748,905.25 = 5,312,275.62 : x
  2. Step 2: Convert to fraction form
    13,831,939.15/20,748,905.25 = 5,312,275.62/x
  3. Step 3: Cross multiply
    13,831,939.15x = 20,748,905.25 × 5,312,275.62
  4. Step 4: Simplify right side
    13,831,939.15x = 110,223,903,501,265
  5. Step 5: Solve for x
    x = 110,223,903,501,265/13,831,939.15
  6. Step 6: Final answer
    x = 7,968,796.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.