Home / 213,181,682.64-319,803,057.12-65,641,752.96

Finding the Fourth Proportional to 213,181,682.64, 319,803,057.12 and 65,641,752.96

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Solution

The fourth proportional to 213,181,682.64, 319,803,057.12 and 65,641,752.96 is: 98,472,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,181,682.64 : 319,803,057.12 = 65,641,752.96 : x
  2. Step 2: Convert to fraction form
    213,181,682.64/319,803,057.12 = 65,641,752.96/x
  3. Step 3: Cross multiply
    213,181,682.64x = 319,803,057.12 × 65,641,752.96
  4. Step 4: Simplify right side
    213,181,682.64x = 20,992,433,271,323,808
  5. Step 5: Solve for x
    x = 20,992,433,271,323,808/213,181,682.64
  6. Step 6: Final answer
    x = 98,472,031.05

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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.