Home / 143,145,285.60-214,829,902.80-66,477,813.60

Finding the Fourth Proportional to 143,145,285.60, 214,829,902.80 and 66,477,813.60

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Solution

The fourth proportional to 143,145,285.60, 214,829,902.80 and 66,477,813.60 is: 99,768,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,145,285.60 : 214,829,902.80 = 66,477,813.60 : x
  2. Step 2: Convert to fraction form
    143,145,285.60/214,829,902.80 = 66,477,813.60/x
  3. Step 3: Cross multiply
    143,145,285.60x = 214,829,902.80 × 66,477,813.60
  4. Step 4: Simplify right side
    143,145,285.60x = 14,281,422,234,044,520
  5. Step 5: Solve for x
    x = 14,281,422,234,044,520/143,145,285.60
  6. Step 6: Final answer
    x = 99,768,722.21

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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.