Home / 279,286,506.63-385,401,134.36-153,836,001.95

Finding the Fourth Proportional to 279,286,506.63, 385,401,134.36 and 153,836,001.95

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Solution

The fourth proportional to 279,286,506.63, 385,401,134.36 and 153,836,001.95 is: 212,285,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,286,506.63 : 385,401,134.36 = 153,836,001.95 : x
  2. Step 2: Convert to fraction form
    279,286,506.63/385,401,134.36 = 153,836,001.95/x
  3. Step 3: Cross multiply
    279,286,506.63x = 385,401,134.36 × 153,836,001.95
  4. Step 4: Simplify right side
    279,286,506.63x = 59,288,569,655,394,752
  5. Step 5: Solve for x
    x = 59,288,569,655,394,752/279,286,506.63
  6. Step 6: Final answer
    x = 212,285,836.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.