Home / 256,000,133-384,048,636.45-81,167,202.20

Finding the Fourth Proportional to 256,000,133, 384,048,636.45 and 81,167,202.20

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Solution

The fourth proportional to 256,000,133, 384,048,636.45 and 81,167,202.20 is: 121,766,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,000,133 : 384,048,636.45 = 81,167,202.20 : x
  2. Step 2: Convert to fraction form
    256,000,133/384,048,636.45 = 81,167,202.20/x
  3. Step 3: Cross multiply
    256,000,133x = 384,048,636.45 × 81,167,202.20
  4. Step 4: Simplify right side
    256,000,133x = 31,172,153,329,371,440
  5. Step 5: Solve for x
    x = 31,172,153,329,371,440/256,000,133
  6. Step 6: Final answer
    x = 121,766,160.68

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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.