Home / 210,284,531.80-315,332,319.30-80,849,123.80

Finding the Fourth Proportional to 210,284,531.80, 315,332,319.30 and 80,849,123.80

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Solution

The fourth proportional to 210,284,531.80, 315,332,319.30 and 80,849,123.80 is: 121,237,361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,284,531.80 : 315,332,319.30 = 80,849,123.80 : x
  2. Step 2: Convert to fraction form
    210,284,531.80/315,332,319.30 = 80,849,123.80/x
  3. Step 3: Cross multiply
    210,284,531.80x = 315,332,319.30 × 80,849,123.80
  4. Step 4: Simplify right side
    210,284,531.80x = 25,494,341,721,226,828
  5. Step 5: Solve for x
    x = 25,494,341,721,226,828/210,284,531.80
  6. Step 6: Final answer
    x = 121,237,361.13

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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.