Home / 256,607,999.40-384,911,999.10-141,816,743.40

Finding the Fourth Proportional to 256,607,999.40, 384,911,999.10 and 141,816,743.40

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Solution

The fourth proportional to 256,607,999.40, 384,911,999.10 and 141,816,743.40 is: 212,725,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,607,999.40 : 384,911,999.10 = 141,816,743.40 : x
  2. Step 2: Convert to fraction form
    256,607,999.40/384,911,999.10 = 141,816,743.40/x
  3. Step 3: Cross multiply
    256,607,999.40x = 384,911,999.10 × 141,816,743.40
  4. Step 4: Simplify right side
    256,607,999.40x = 54,586,966,207,945,736
  5. Step 5: Solve for x
    x = 54,586,966,207,945,736/256,607,999.40
  6. Step 6: Final answer
    x = 212,725,115.10

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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.