Home / 291,085,305.60-436,627,958.40-145,541,330.40

Finding the Fourth Proportional to 291,085,305.60, 436,627,958.40 and 145,541,330.40

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Solution

The fourth proportional to 291,085,305.60, 436,627,958.40 and 145,541,330.40 is: 218,311,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,085,305.60 : 436,627,958.40 = 145,541,330.40 : x
  2. Step 2: Convert to fraction form
    291,085,305.60/436,627,958.40 = 145,541,330.40/x
  3. Step 3: Cross multiply
    291,085,305.60x = 436,627,958.40 × 145,541,330.40
  4. Step 4: Simplify right side
    291,085,305.60x = 63,547,413,955,371,856
  5. Step 5: Solve for x
    x = 63,547,413,955,371,856/291,085,305.60
  6. Step 6: Final answer
    x = 218,311,995.60

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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.