Home / 18,532,512.21-27,779,168.45-6,853,378.89

Finding the Fourth Proportional to 18,532,512.21, 27,779,168.45 and 6,853,378.89

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Solution

The fourth proportional to 18,532,512.21, 27,779,168.45 and 6,853,378.89 is: 10,272,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,532,512.21 : 27,779,168.45 = 6,853,378.89 : x
  2. Step 2: Convert to fraction form
    18,532,512.21/27,779,168.45 = 6,853,378.89/x
  3. Step 3: Cross multiply
    18,532,512.21x = 27,779,168.45 × 6,853,378.89
  4. Step 4: Simplify right side
    18,532,512.21x = 190,381,166,602,717.12
  5. Step 5: Solve for x
    x = 190,381,166,602,717.12/18,532,512.21
  6. Step 6: Final answer
    x = 10,272,820.24

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1.5x scale

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.