Home / 256,243,405.59-384,430,652.78-74,490,583.59

Finding the Fourth Proportional to 256,243,405.59, 384,430,652.78 and 74,490,583.59

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Solution

The fourth proportional to 256,243,405.59, 384,430,652.78 and 74,490,583.59 is: 111,754,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,243,405.59 : 384,430,652.78 = 74,490,583.59 : x
  2. Step 2: Convert to fraction form
    256,243,405.59/384,430,652.78 = 74,490,583.59/x
  3. Step 3: Cross multiply
    256,243,405.59x = 384,430,652.78 × 74,490,583.59
  4. Step 4: Simplify right side
    256,243,405.59x = 28,636,463,675,094,404
  5. Step 5: Solve for x
    x = 28,636,463,675,094,404/256,243,405.59
  6. Step 6: Final answer
    x = 111,754,929.30

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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.