Home / 219,390,984-328,990,806.29-82,980,708.12

Finding the Fourth Proportional to 219,390,984, 328,990,806.29 and 82,980,708.12

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Solution

The fourth proportional to 219,390,984, 328,990,806.29 and 82,980,708.12 is: 124,434,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390,984 : 328,990,806.29 = 82,980,708.12 : x
  2. Step 2: Convert to fraction form
    219,390,984/328,990,806.29 = 82,980,708.12/x
  3. Step 3: Cross multiply
    219,390,984x = 328,990,806.29 × 82,980,708.12
  4. Step 4: Simplify right side
    219,390,984x = 27,299,890,071,121,404
  5. Step 5: Solve for x
    x = 27,299,890,071,121,404/219,390,984
  6. Step 6: Final answer
    x = 124,434,876.83

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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.