Home / 143,760,980.80-215,494,504.80-70,865,646.40

Finding the Fourth Proportional to 143,760,980.80, 215,494,504.80 and 70,865,646.40

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Solution

The fourth proportional to 143,760,980.80, 215,494,504.80 and 70,865,646.40 is: 106,226,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,760,980.80 : 215,494,504.80 = 70,865,646.40 : x
  2. Step 2: Convert to fraction form
    143,760,980.80/215,494,504.80 = 70,865,646.40/x
  3. Step 3: Cross multiply
    143,760,980.80x = 215,494,504.80 × 70,865,646.40
  4. Step 4: Simplify right side
    143,760,980.80x = 15,271,157,378,299,904
  5. Step 5: Solve for x
    x = 15,271,157,378,299,904/143,760,980.80
  6. Step 6: Final answer
    x = 106,226,023.87

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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.