Home / 280,580,152.34-387,214,105.75-155,130,026.96

Finding the Fourth Proportional to 280,580,152.34, 387,214,105.75 and 155,130,026.96

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Solution

The fourth proportional to 280,580,152.34, 387,214,105.75 and 155,130,026.96 is: 214,086,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,580,152.34 : 387,214,105.75 = 155,130,026.96 : x
  2. Step 2: Convert to fraction form
    280,580,152.34/387,214,105.75 = 155,130,026.96/x
  3. Step 3: Cross multiply
    280,580,152.34x = 387,214,105.75 × 155,130,026.96
  4. Step 4: Simplify right side
    280,580,152.34x = 60,068,534,664,289,792
  5. Step 5: Solve for x
    x = 60,068,534,664,289,792/280,580,152.34
  6. Step 6: Final answer
    x = 214,086,898.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.