Home / 21,174,931,974.40-31,763,592,355.20-6,453,433,657.60

Finding the Fourth Proportional to 21,174,931,974.40, 31,763,592,355.20 and 6,453,433,657.60

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Solution

The fourth proportional to 21,174,931,974.40, 31,763,592,355.20 and 6,453,433,657.60 is: 9,680,514,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174,931,974.40 : 31,763,592,355.20 = 6,453,433,657.60 : x
  2. Step 2: Convert to fraction form
    21,174,931,974.40/31,763,592,355.20 = 6,453,433,657.60/x
  3. Step 3: Cross multiply
    21,174,931,974.40x = 31,763,592,355.20 × 6,453,433,657.60
  4. Step 4: Simplify right side
    21,174,931,974.40x = 204,984,235,991,333,765,120
  5. Step 5: Solve for x
    x = 204,984,235,991,333,765,120/21,174,931,974.40
  6. Step 6: Final answer
    x = 9,680,514,498.90

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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.