Home / 291,056,661.60-436,584,992.40-145,512,686.40

Finding the Fourth Proportional to 291,056,661.60, 436,584,992.40 and 145,512,686.40

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Solution

The fourth proportional to 291,056,661.60, 436,584,992.40 and 145,512,686.40 is: 218,269,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,056,661.60 : 436,584,992.40 = 145,512,686.40 : x
  2. Step 2: Convert to fraction form
    291,056,661.60/436,584,992.40 = 145,512,686.40/x
  3. Step 3: Cross multiply
    291,056,661.60x = 436,584,992.40 × 145,512,686.40
  4. Step 4: Simplify right side
    291,056,661.60x = 63,528,655,086,047,584
  5. Step 5: Solve for x
    x = 63,528,655,086,047,584/291,056,661.60
  6. Step 6: Final answer
    x = 218,269,029.60

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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.