Home / 143,124,834-197,520,707.77-107,780,281.20

Finding the Fourth Proportional to 143,124,834, 197,520,707.77 and 107,780,281.20

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Solution

The fourth proportional to 143,124,834, 197,520,707.77 and 107,780,281.20 is: 148,743,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,124,834 : 197,520,707.77 = 107,780,281.20 : x
  2. Step 2: Convert to fraction form
    143,124,834/197,520,707.77 = 107,780,281.20/x
  3. Step 3: Cross multiply
    143,124,834x = 197,520,707.77 × 107,780,281.20
  4. Step 4: Simplify right side
    143,124,834x = 21,288,837,426,004,176
  5. Step 5: Solve for x
    x = 21,288,837,426,004,176/143,124,834
  6. Step 6: Final answer
    x = 148,743,141.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.