Home / 312,623,581.80-468,343,471.80-208,679,364.60

Finding the Fourth Proportional to 312,623,581.80, 468,343,471.80 and 208,679,364.60

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Solution

The fourth proportional to 312,623,581.80, 468,343,471.80 and 208,679,364.60 is: 312,623,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,623,581.80 : 468,343,471.80 = 208,679,364.60 : x
  2. Step 2: Convert to fraction form
    312,623,581.80/468,343,471.80 = 208,679,364.60/x
  3. Step 3: Cross multiply
    312,623,581.80x = 468,343,471.80 × 208,679,364.60
  4. Step 4: Simplify right side
    312,623,581.80x = 97,733,618,109,782,016
  5. Step 5: Solve for x
    x = 97,733,618,109,782,016/312,623,581.80
  6. Step 6: Final answer
    x = 312,623,947.13

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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.