Home / 38,115,921.30-52,599,931.38-20,712,225.12

Finding the Fourth Proportional to 38,115,921.30, 52,599,931.38 and 20,712,225.12

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Solution

The fourth proportional to 38,115,921.30, 52,599,931.38 and 20,712,225.12 is: 28,582,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115,921.30 : 52,599,931.38 = 20,712,225.12 : x
  2. Step 2: Convert to fraction form
    38,115,921.30/52,599,931.38 = 20,712,225.12/x
  3. Step 3: Cross multiply
    38,115,921.30x = 52,599,931.38 × 20,712,225.12
  4. Step 4: Simplify right side
    38,115,921.30x = 1,089,461,620,039,112.38
  5. Step 5: Solve for x
    x = 1,089,461,620,039,112.38/38,115,921.30
  6. Step 6: Final answer
    x = 28,582,848.92

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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.