Home / 56,831,172.72-85,251,190.32-20,444,294.40

Finding the Fourth Proportional to 56,831,172.72, 85,251,190.32 and 20,444,294.40

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Solution

The fourth proportional to 56,831,172.72, 85,251,190.32 and 20,444,294.40 is: 30,668,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,831,172.72 : 85,251,190.32 = 20,444,294.40 : x
  2. Step 2: Convert to fraction form
    56,831,172.72/85,251,190.32 = 20,444,294.40/x
  3. Step 3: Cross multiply
    56,831,172.72x = 85,251,190.32 × 20,444,294.40
  4. Step 4: Simplify right side
    56,831,172.72x = 1,742,900,432,852,510
  5. Step 5: Solve for x
    x = 1,742,900,432,852,510/56,831,172.72
  6. Step 6: Final answer
    x = 30,668,035.68

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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.