Home / 651,611,138.40-977,440,327.20-191,595,808.80

Finding the Fourth Proportional to 651,611,138.40, 977,440,327.20 and 191,595,808.80

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Solution

The fourth proportional to 651,611,138.40, 977,440,327.20 and 191,595,808.80 is: 287,400,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,611,138.40 : 977,440,327.20 = 191,595,808.80 : x
  2. Step 2: Convert to fraction form
    651,611,138.40/977,440,327.20 = 191,595,808.80/x
  3. Step 3: Cross multiply
    651,611,138.40x = 977,440,327.20 × 191,595,808.80
  4. Step 4: Simplify right side
    651,611,138.40x = 187,273,470,043,620,672
  5. Step 5: Solve for x
    x = 187,273,470,043,620,672/651,611,138.40
  6. Step 6: Final answer
    x = 287,400,658.16

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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.