Home / 102,831,189.45-141,909,652.74-56,421,431.07

Finding the Fourth Proportional to 102,831,189.45, 141,909,652.74 and 56,421,431.07

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Solution

The fourth proportional to 102,831,189.45, 141,909,652.74 and 56,421,431.07 is: 77,863,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,831,189.45 : 141,909,652.74 = 56,421,431.07 : x
  2. Step 2: Convert to fraction form
    102,831,189.45/141,909,652.74 = 56,421,431.07/x
  3. Step 3: Cross multiply
    102,831,189.45x = 141,909,652.74 × 56,421,431.07
  4. Step 4: Simplify right side
    102,831,189.45x = 8,006,745,689,741,720
  5. Step 5: Solve for x
    x = 8,006,745,689,741,720/102,831,189.45
  6. Step 6: Final answer
    x = 77,863,007.64

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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.