Home / 256,243,398.82-384,430,642.63-74,490,576.82

Finding the Fourth Proportional to 256,243,398.82, 384,430,642.63 and 74,490,576.82

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Solution

The fourth proportional to 256,243,398.82, 384,430,642.63 and 74,490,576.82 is: 111,754,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,243,398.82 : 384,430,642.63 = 74,490,576.82 : x
  2. Step 2: Convert to fraction form
    256,243,398.82/384,430,642.63 = 74,490,576.82/x
  3. Step 3: Cross multiply
    256,243,398.82x = 384,430,642.63 × 74,490,576.82
  4. Step 4: Simplify right side
    256,243,398.82x = 28,636,460,315,644,676
  5. Step 5: Solve for x
    x = 28,636,460,315,644,676/256,243,398.82
  6. Step 6: Final answer
    x = 111,754,919.14

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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.