Home / 28,381,809.70-42,572,714.55-19,423,857.70

Finding the Fourth Proportional to 28,381,809.70, 42,572,714.55 and 19,423,857.70

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Solution

The fourth proportional to 28,381,809.70, 42,572,714.55 and 19,423,857.70 is: 29,135,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381,809.70 : 42,572,714.55 = 19,423,857.70 : x
  2. Step 2: Convert to fraction form
    28,381,809.70/42,572,714.55 = 19,423,857.70/x
  3. Step 3: Cross multiply
    28,381,809.70x = 42,572,714.55 × 19,423,857.70
  4. Step 4: Simplify right side
    28,381,809.70x = 826,926,349,321,919.50
  5. Step 5: Solve for x
    x = 826,926,349,321,919.50/28,381,809.70
  6. Step 6: Final answer
    x = 29,135,786.55

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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.