Home / 217,048,515.20-325,572,772.80-80,705,686.40

Finding the Fourth Proportional to 217,048,515.20, 325,572,772.80 and 80,705,686.40

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Solution

The fourth proportional to 217,048,515.20, 325,572,772.80 and 80,705,686.40 is: 121,058,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,048,515.20 : 325,572,772.80 = 80,705,686.40 : x
  2. Step 2: Convert to fraction form
    217,048,515.20/325,572,772.80 = 80,705,686.40/x
  3. Step 3: Cross multiply
    217,048,515.20x = 325,572,772.80 × 80,705,686.40
  4. Step 4: Simplify right side
    217,048,515.20x = 26,275,574,101,975,252
  5. Step 5: Solve for x
    x = 26,275,574,101,975,252/217,048,515.20
  6. Step 6: Final answer
    x = 121,058,529.60

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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.