Home / 4,720,985.22-6,514,381.66-2,978,000.21

Finding the Fourth Proportional to 4,720,985.22, 6,514,381.66 and 2,978,000.21

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Solution

The fourth proportional to 4,720,985.22, 6,514,381.66 and 2,978,000.21 is: 4,109,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720,985.22 : 6,514,381.66 = 2,978,000.21 : x
  2. Step 2: Convert to fraction form
    4,720,985.22/6,514,381.66 = 2,978,000.21/x
  3. Step 3: Cross multiply
    4,720,985.22x = 6,514,381.66 × 2,978,000.21
  4. Step 4: Simplify right side
    4,720,985.22x = 19,399,829,951,500.15
  5. Step 5: Solve for x
    x = 19,399,829,951,500.15/4,720,985.22
  6. Step 6: Final answer
    x = 4,109,275.72

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1.5x scale

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.