Home / 30,015,789-45,012,654.40-10,314,328.36

Finding the Fourth Proportional to 30,015,789, 45,012,654.40 and 10,314,328.36

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Solution

The fourth proportional to 30,015,789, 45,012,654.40 and 10,314,328.36 is: 15,467,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,015,789 : 45,012,654.40 = 10,314,328.36 : x
  2. Step 2: Convert to fraction form
    30,015,789/45,012,654.40 = 10,314,328.36/x
  3. Step 3: Cross multiply
    30,015,789x = 45,012,654.40 × 10,314,328.36
  4. Step 4: Simplify right side
    30,015,789x = 464,275,297,836,798.75
  5. Step 5: Solve for x
    x = 464,275,297,836,798.75/30,015,789
  6. Step 6: Final answer
    x = 15,467,702.61

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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.