Home / 30,329,809.20-45,494,713.80-8,765,114.40

Finding the Fourth Proportional to 30,329,809.20, 45,494,713.80 and 8,765,114.40

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Solution

The fourth proportional to 30,329,809.20, 45,494,713.80 and 8,765,114.40 is: 13,147,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329,809.20 : 45,494,713.80 = 8,765,114.40 : x
  2. Step 2: Convert to fraction form
    30,329,809.20/45,494,713.80 = 8,765,114.40/x
  3. Step 3: Cross multiply
    30,329,809.20x = 45,494,713.80 × 8,765,114.40
  4. Step 4: Simplify right side
    30,329,809.20x = 398,766,371,052,258.69
  5. Step 5: Solve for x
    x = 398,766,371,052,258.69/30,329,809.20
  6. Step 6: Final answer
    x = 13,147,671.60

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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.