Home / 145,050,064.56-217,438,310.88-72,197,967.12

Finding the Fourth Proportional to 145,050,064.56, 217,438,310.88 and 72,197,967.12

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Solution

The fourth proportional to 145,050,064.56, 217,438,310.88 and 72,197,967.12 is: 108,228,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,050,064.56 : 217,438,310.88 = 72,197,967.12 : x
  2. Step 2: Convert to fraction form
    145,050,064.56/217,438,310.88 = 72,197,967.12/x
  3. Step 3: Cross multiply
    145,050,064.56x = 217,438,310.88 × 72,197,967.12
  4. Step 4: Simplify right side
    145,050,064.56x = 15,698,604,019,542,578
  5. Step 5: Solve for x
    x = 15,698,604,019,542,578/145,050,064.56
  6. Step 6: Final answer
    x = 108,228,866.13

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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.