Home / 92,679,187.20-139,068,547.20-38,831,942.40

Finding the Fourth Proportional to 92,679,187.20, 139,068,547.20 and 38,831,942.40

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Solution

The fourth proportional to 92,679,187.20, 139,068,547.20 and 38,831,942.40 is: 58,268,765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,679,187.20 : 139,068,547.20 = 38,831,942.40 : x
  2. Step 2: Convert to fraction form
    92,679,187.20/139,068,547.20 = 38,831,942.40/x
  3. Step 3: Cross multiply
    92,679,187.20x = 139,068,547.20 × 38,831,942.40
  4. Step 4: Simplify right side
    92,679,187.20x = 5,400,301,814,522,081
  5. Step 5: Solve for x
    x = 5,400,301,814,522,081/92,679,187.20
  6. Step 6: Final answer
    x = 58,268,765.38

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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.