Home / 193,537,108.80-290,305,663.20-145,761,364.80

Finding the Fourth Proportional to 193,537,108.80, 290,305,663.20 and 145,761,364.80

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Solution

The fourth proportional to 193,537,108.80, 290,305,663.20 and 145,761,364.80 is: 218,642,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,537,108.80 : 290,305,663.20 = 145,761,364.80 : x
  2. Step 2: Convert to fraction form
    193,537,108.80/290,305,663.20 = 145,761,364.80/x
  3. Step 3: Cross multiply
    193,537,108.80x = 290,305,663.20 × 145,761,364.80
  4. Step 4: Simplify right side
    193,537,108.80x = 42,315,349,677,201,136
  5. Step 5: Solve for x
    x = 42,315,349,677,201,136/193,537,108.80
  6. Step 6: Final answer
    x = 218,642,047.20

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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.