Home / 145,529,588.80-218,294,383.20-72,757,601.20

Finding the Fourth Proportional to 145,529,588.80, 218,294,383.20 and 72,757,601.20

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Solution

The fourth proportional to 145,529,588.80, 218,294,383.20 and 72,757,601.20 is: 109,136,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,529,588.80 : 218,294,383.20 = 72,757,601.20 : x
  2. Step 2: Convert to fraction form
    145,529,588.80/218,294,383.20 = 72,757,601.20/x
  3. Step 3: Cross multiply
    145,529,588.80x = 218,294,383.20 × 72,757,601.20
  4. Step 4: Simplify right side
    145,529,588.80x = 15,882,575,677,065,580
  5. Step 5: Solve for x
    x = 15,882,575,677,065,580/145,529,588.80
  6. Step 6: Final answer
    x = 109,136,401.80

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1.5x scale

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.