Home / 107,831,977.32-161,891,457.92-56,749,868.40

Finding the Fourth Proportional to 107,831,977.32, 161,891,457.92 and 56,749,868.40

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Solution

The fourth proportional to 107,831,977.32, 161,891,457.92 and 56,749,868.40 is: 85,200,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,831,977.32 : 161,891,457.92 = 56,749,868.40 : x
  2. Step 2: Convert to fraction form
    107,831,977.32/161,891,457.92 = 56,749,868.40/x
  3. Step 3: Cross multiply
    107,831,977.32x = 161,891,457.92 × 56,749,868.40
  4. Step 4: Simplify right side
    107,831,977.32x = 9,187,318,932,044,136
  5. Step 5: Solve for x
    x = 9,187,318,932,044,136/107,831,977.32
  6. Step 6: Final answer
    x = 85,200,319.61

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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.