Home / 262,196,709.40-393,295,064.10-80,443,595.80

Finding the Fourth Proportional to 262,196,709.40, 393,295,064.10 and 80,443,595.80

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Solution

The fourth proportional to 262,196,709.40, 393,295,064.10 and 80,443,595.80 is: 120,665,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,196,709.40 : 393,295,064.10 = 80,443,595.80 : x
  2. Step 2: Convert to fraction form
    262,196,709.40/393,295,064.10 = 80,443,595.80/x
  3. Step 3: Cross multiply
    262,196,709.40x = 393,295,064.10 × 80,443,595.80
  4. Step 4: Simplify right side
    262,196,709.40x = 31,638,069,166,595,492
  5. Step 5: Solve for x
    x = 31,638,069,166,595,492/262,196,709.40
  6. Step 6: Final answer
    x = 120,665,393.70

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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.