Home / 312,014,259.80-468,021,389.70-221,314,995.80

Finding the Fourth Proportional to 312,014,259.80, 468,021,389.70 and 221,314,995.80

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Solution

The fourth proportional to 312,014,259.80, 468,021,389.70 and 221,314,995.80 is: 331,972,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,014,259.80 : 468,021,389.70 = 221,314,995.80 : x
  2. Step 2: Convert to fraction form
    312,014,259.80/468,021,389.70 = 221,314,995.80/x
  3. Step 3: Cross multiply
    312,014,259.80x = 468,021,389.70 × 221,314,995.80
  4. Step 4: Simplify right side
    312,014,259.80x = 103,580,151,895,765,664
  5. Step 5: Solve for x
    x = 103,580,151,895,765,664/312,014,259.80
  6. Step 6: Final answer
    x = 331,972,493.70

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Similar ratio
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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.