Home / 211,342,355.11-291,642,568.98-117,255,500.72

Finding the Fourth Proportional to 211,342,355.11, 291,642,568.98 and 117,255,500.72

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Solution

The fourth proportional to 211,342,355.11, 291,642,568.98 and 117,255,500.72 is: 161,807,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,342,355.11 : 291,642,568.98 = 117,255,500.72 : x
  2. Step 2: Convert to fraction form
    211,342,355.11/291,642,568.98 = 117,255,500.72/x
  3. Step 3: Cross multiply
    211,342,355.11x = 291,642,568.98 × 117,255,500.72
  4. Step 4: Simplify right side
    211,342,355.11x = 34,196,695,457,851,808
  5. Step 5: Solve for x
    x = 34,196,695,457,851,808/211,342,355.11
  6. Step 6: Final answer
    x = 161,807,108.85

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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.