Home / 219,110,822.60-328,666,233.90-128,187,609.80

Finding the Fourth Proportional to 219,110,822.60, 328,666,233.90 and 128,187,609.80

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Solution

The fourth proportional to 219,110,822.60, 328,666,233.90 and 128,187,609.80 is: 192,281,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,110,822.60 : 328,666,233.90 = 128,187,609.80 : x
  2. Step 2: Convert to fraction form
    219,110,822.60/328,666,233.90 = 128,187,609.80/x
  3. Step 3: Cross multiply
    219,110,822.60x = 328,666,233.90 × 128,187,609.80
  4. Step 4: Simplify right side
    219,110,822.60x = 42,130,938,945,608,728
  5. Step 5: Solve for x
    x = 42,130,938,945,608,728/219,110,822.60
  6. Step 6: Final answer
    x = 192,281,414.70

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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.