Home / 156,972,157.40-235,542,216.90-66,104,931.80

Finding the Fourth Proportional to 156,972,157.40, 235,542,216.90 and 66,104,931.80

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Solution

The fourth proportional to 156,972,157.40, 235,542,216.90 and 66,104,931.80 is: 99,192,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972,157.40 : 235,542,216.90 = 66,104,931.80 : x
  2. Step 2: Convert to fraction form
    156,972,157.40/235,542,216.90 = 66,104,931.80/x
  3. Step 3: Cross multiply
    156,972,157.40x = 235,542,216.90 × 66,104,931.80
  4. Step 4: Simplify right side
    156,972,157.40x = 15,570,502,184,195,308
  5. Step 5: Solve for x
    x = 15,570,502,184,195,308/156,972,157.40
  6. Step 6: Final answer
    x = 99,192,764.13

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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.