Home / 20,782,411,668.12-31,173,616,899.54-9,586,973,472.60

Finding the Fourth Proportional to 20,782,411,668.12, 31,173,616,899.54 and 9,586,973,472.60

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Solution

The fourth proportional to 20,782,411,668.12, 31,173,616,899.54 and 9,586,973,472.60 is: 14,380,459,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,782,411,668.12 : 31,173,616,899.54 = 9,586,973,472.60 : x
  2. Step 2: Convert to fraction form
    20,782,411,668.12/31,173,616,899.54 = 9,586,973,472.60/x
  3. Step 3: Cross multiply
    20,782,411,668.12x = 31,173,616,899.54 × 9,586,973,472.60
  4. Step 4: Simplify right side
    20,782,411,668.12x = 298,860,638,260,885,061,632
  5. Step 5: Solve for x
    x = 298,860,638,260,885,061,632/20,782,411,668.12
  6. Step 6: Final answer
    x = 14,380,459,930.90

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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.