Home / 836,156,638.80-1,254,153,913.38-253,896,002.64

Finding the Fourth Proportional to 836,156,638.80, 1,254,153,913.38 and 253,896,002.64

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Solution

The fourth proportional to 836,156,638.80, 1,254,153,913.38 and 253,896,002.64 is: 380,819,394.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,156,638.80 : 1,254,153,913.38 = 253,896,002.64 : x
  2. Step 2: Convert to fraction form
    836,156,638.80/1,254,153,913.38 = 253,896,002.64/x
  3. Step 3: Cross multiply
    836,156,638.80x = 1,254,153,913.38 × 253,896,002.64
  4. Step 4: Simplify right side
    836,156,638.80x = 318,424,665,302,494,848
  5. Step 5: Solve for x
    x = 318,424,665,302,494,848/836,156,638.80
  6. Step 6: Final answer
    x = 380,819,394.99

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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.