Home / 211,316,997.20-316,975,495.80-134,789,493.20

Finding the Fourth Proportional to 211,316,997.20, 316,975,495.80 and 134,789,493.20

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Solution

The fourth proportional to 211,316,997.20, 316,975,495.80 and 134,789,493.20 is: 202,184,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,316,997.20 : 316,975,495.80 = 134,789,493.20 : x
  2. Step 2: Convert to fraction form
    211,316,997.20/316,975,495.80 = 134,789,493.20/x
  3. Step 3: Cross multiply
    211,316,997.20x = 316,975,495.80 × 134,789,493.20
  4. Step 4: Simplify right side
    211,316,997.20x = 42,724,966,435,700,728
  5. Step 5: Solve for x
    x = 42,724,966,435,700,728/211,316,997.20
  6. Step 6: Final answer
    x = 202,184,239.80

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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.