Home / 219,110,658.40-328,665,987.60-155,409,666.40

Finding the Fourth Proportional to 219,110,658.40, 328,665,987.60 and 155,409,666.40

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Solution

The fourth proportional to 219,110,658.40, 328,665,987.60 and 155,409,666.40 is: 233,114,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,110,658.40 : 328,665,987.60 = 155,409,666.40 : x
  2. Step 2: Convert to fraction form
    219,110,658.40/328,665,987.60 = 155,409,666.40/x
  3. Step 3: Cross multiply
    219,110,658.40x = 328,665,987.60 × 155,409,666.40
  4. Step 4: Simplify right side
    219,110,658.40x = 51,077,871,489,942,544
  5. Step 5: Solve for x
    x = 51,077,871,489,942,544/219,110,658.40
  6. Step 6: Final answer
    x = 233,114,499.60

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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.