Home / 280,114,721.40-420,644,474.10-234,009,262.20

Finding the Fourth Proportional to 280,114,721.40, 420,644,474.10 and 234,009,262.20

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Solution

The fourth proportional to 280,114,721.40, 420,644,474.10 and 234,009,262.20 is: 351,408,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,114,721.40 : 420,644,474.10 = 234,009,262.20 : x
  2. Step 2: Convert to fraction form
    280,114,721.40/420,644,474.10 = 234,009,262.20/x
  3. Step 3: Cross multiply
    280,114,721.40x = 420,644,474.10 × 234,009,262.20
  4. Step 4: Simplify right side
    280,114,721.40x = 98,434,703,032,648,016
  5. Step 5: Solve for x
    x = 98,434,703,032,648,016/280,114,721.40
  6. Step 6: Final answer
    x = 351,408,531.98

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1.5x scale

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.