Home / 397,563,771,817.44-596,429,422,344.81-128,931,805,638.55

Finding the Fourth Proportional to 397,563,771,817.44, 596,429,422,344.81 and 128,931,805,638.55

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Solution

The fourth proportional to 397,563,771,817.44, 596,429,422,344.81 and 128,931,805,638.55 is: 193,424,873,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,563,771,817.44 : 596,429,422,344.81 = 128,931,805,638.55 : x
  2. Step 2: Convert to fraction form
    397,563,771,817.44/596,429,422,344.81 = 128,931,805,638.55/x
  3. Step 3: Cross multiply
    397,563,771,817.44x = 596,429,422,344.81 × 128,931,805,638.55
  4. Step 4: Simplify right side
    397,563,771,817.44x = 76,898,722,358,873,708,036,096
  5. Step 5: Solve for x
    x = 76,898,722,358,873,708,036,096/397,563,771,817.44
  6. Step 6: Final answer
    x = 193,424,873,718.59

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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.