Home / 92,939,737.60-139,409,606.40-85,507,955.20

Finding the Fourth Proportional to 92,939,737.60, 139,409,606.40 and 85,507,955.20

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Solution

The fourth proportional to 92,939,737.60, 139,409,606.40 and 85,507,955.20 is: 128,261,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,939,737.60 : 139,409,606.40 = 85,507,955.20 : x
  2. Step 2: Convert to fraction form
    92,939,737.60/139,409,606.40 = 85,507,955.20/x
  3. Step 3: Cross multiply
    92,939,737.60x = 139,409,606.40 × 85,507,955.20
  4. Step 4: Simplify right side
    92,939,737.60x = 11,920,630,378,500,834
  5. Step 5: Solve for x
    x = 11,920,630,378,500,834/92,939,737.60
  6. Step 6: Final answer
    x = 128,261,932.80

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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.