Home / 30,579,059.72-42,199,108.38-16,828,023.86

Finding the Fourth Proportional to 30,579,059.72, 42,199,108.38 and 16,828,023.86

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Solution

The fourth proportional to 30,579,059.72, 42,199,108.38 and 16,828,023.86 is: 23,222,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,059.72 : 42,199,108.38 = 16,828,023.86 : x
  2. Step 2: Convert to fraction form
    30,579,059.72/42,199,108.38 = 16,828,023.86/x
  3. Step 3: Cross multiply
    30,579,059.72x = 42,199,108.38 × 16,828,023.86
  4. Step 4: Simplify right side
    30,579,059.72x = 710,127,602,689,366
  5. Step 5: Solve for x
    x = 710,127,602,689,366/30,579,059.72
  6. Step 6: Final answer
    x = 23,222,676.21

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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.