Home / 211,633,311.34-317,490,848.16-80,465,387.86

Finding the Fourth Proportional to 211,633,311.34, 317,490,848.16 and 80,465,387.86

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Solution

The fourth proportional to 211,633,311.34, 317,490,848.16 and 80,465,387.86 is: 120,713,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,633,311.34 : 317,490,848.16 = 80,465,387.86 : x
  2. Step 2: Convert to fraction form
    211,633,311.34/317,490,848.16 = 80,465,387.86/x
  3. Step 3: Cross multiply
    211,633,311.34x = 317,490,848.16 × 80,465,387.86
  4. Step 4: Simplify right side
    211,633,311.34x = 25,547,024,239,194,768
  5. Step 5: Solve for x
    x = 25,547,024,239,194,768/211,633,311.34
  6. Step 6: Final answer
    x = 120,713,625.27

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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.