Home / 387,936,276.60-581,904,414.90-345,846,149.40

Finding the Fourth Proportional to 387,936,276.60, 581,904,414.90 and 345,846,149.40

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Solution

The fourth proportional to 387,936,276.60, 581,904,414.90 and 345,846,149.40 is: 518,769,224.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,936,276.60 : 581,904,414.90 = 345,846,149.40 : x
  2. Step 2: Convert to fraction form
    387,936,276.60/581,904,414.90 = 345,846,149.40/x
  3. Step 3: Cross multiply
    387,936,276.60x = 581,904,414.90 × 345,846,149.40
  4. Step 4: Simplify right side
    387,936,276.60x = 201,249,401,212,024,960
  5. Step 5: Solve for x
    x = 201,249,401,212,024,960/387,936,276.60
  6. Step 6: Final answer
    x = 518,769,224.10

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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.