Home / 120,384,295.20-180,576,442.80-39,607,898.40

Finding the Fourth Proportional to 120,384,295.20, 180,576,442.80 and 39,607,898.40

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Solution

The fourth proportional to 120,384,295.20, 180,576,442.80 and 39,607,898.40 is: 59,411,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384,295.20 : 180,576,442.80 = 39,607,898.40 : x
  2. Step 2: Convert to fraction form
    120,384,295.20/180,576,442.80 = 39,607,898.40/x
  3. Step 3: Cross multiply
    120,384,295.20x = 180,576,442.80 × 39,607,898.40
  4. Step 4: Simplify right side
    120,384,295.20x = 7,152,253,399,855,812
  5. Step 5: Solve for x
    x = 7,152,253,399,855,812/120,384,295.20
  6. Step 6: Final answer
    x = 59,411,847.60

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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.