Home / 243,002,512,959.76-364,137,720,868.68-216,520,457,193.28

Finding the Fourth Proportional to 243,002,512,959.76, 364,137,720,868.68 and 216,520,457,193.28

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Solution

The fourth proportional to 243,002,512,959.76, 364,137,720,868.68 and 216,520,457,193.28 is: 324,454,528,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,002,512,959.76 : 364,137,720,868.68 = 216,520,457,193.28 : x
  2. Step 2: Convert to fraction form
    243,002,512,959.76/364,137,720,868.68 = 216,520,457,193.28/x
  3. Step 3: Cross multiply
    243,002,512,959.76x = 364,137,720,868.68 × 216,520,457,193.28
  4. Step 4: Simplify right side
    243,002,512,959.76x = 78,843,265,803,805,570,105,344
  5. Step 5: Solve for x
    x = 78,843,265,803,805,570,105,344/243,002,512,959.76
  6. Step 6: Final answer
    x = 324,454,528,652.80

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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.