Home / 15,319,124.46-21,140,434.62-8,443,633.86

Finding the Fourth Proportional to 15,319,124.46, 21,140,434.62 and 8,443,633.86

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Solution

The fourth proportional to 15,319,124.46, 21,140,434.62 and 8,443,633.86 is: 11,652,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319,124.46 : 21,140,434.62 = 8,443,633.86 : x
  2. Step 2: Convert to fraction form
    15,319,124.46/21,140,434.62 = 8,443,633.86/x
  3. Step 3: Cross multiply
    15,319,124.46x = 21,140,434.62 × 8,443,633.86
  4. Step 4: Simplify right side
    15,319,124.46x = 178,502,089,572,548.22
  5. Step 5: Solve for x
    x = 178,502,089,572,548.22/15,319,124.46
  6. Step 6: Final answer
    x = 11,652,238.35

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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.