Home / 1,270,263,831.75-1,905,184,410.46-384,738,653.92

Finding the Fourth Proportional to 1,270,263,831.75, 1,905,184,410.46 and 384,738,653.92

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Solution

The fourth proportional to 1,270,263,831.75, 1,905,184,410.46 and 384,738,653.92 is: 577,043,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,263,831.75 : 1,905,184,410.46 = 384,738,653.92 : x
  2. Step 2: Convert to fraction form
    1,270,263,831.75/1,905,184,410.46 = 384,738,653.92/x
  3. Step 3: Cross multiply
    1,270,263,831.75x = 1,905,184,410.46 × 384,738,653.92
  4. Step 4: Simplify right side
    1,270,263,831.75x = 732,998,085,549,749,248
  5. Step 5: Solve for x
    x = 732,998,085,549,749,248/1,270,263,831.75
  6. Step 6: Final answer
    x = 577,043,970.89

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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.