Home / 20,980,671,752.52-28,954,977,493.14-11,948,811,749.64

Finding the Fourth Proportional to 20,980,671,752.52, 28,954,977,493.14 and 11,948,811,749.64

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Solution

The fourth proportional to 20,980,671,752.52, 28,954,977,493.14 and 11,948,811,749.64 is: 16,490,300,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,671,752.52 : 28,954,977,493.14 = 11,948,811,749.64 : x
  2. Step 2: Convert to fraction form
    20,980,671,752.52/28,954,977,493.14 = 11,948,811,749.64/x
  3. Step 3: Cross multiply
    20,980,671,752.52x = 28,954,977,493.14 × 11,948,811,749.64
  4. Step 4: Simplify right side
    20,980,671,752.52x = 345,977,575,280,592,945,152
  5. Step 5: Solve for x
    x = 345,977,575,280,592,945,152/20,980,671,752.52
  6. Step 6: Final answer
    x = 16,490,300,184.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.