Home / 261,151,479.36-360,389,029.62-143,674,289.40

Finding the Fourth Proportional to 261,151,479.36, 360,389,029.62 and 143,674,289.40

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Solution

The fourth proportional to 261,151,479.36, 360,389,029.62 and 143,674,289.40 is: 198,270,512.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,479.36 : 360,389,029.62 = 143,674,289.40 : x
  2. Step 2: Convert to fraction form
    261,151,479.36/360,389,029.62 = 143,674,289.40/x
  3. Step 3: Cross multiply
    261,151,479.36x = 360,389,029.62 × 143,674,289.40
  4. Step 4: Simplify right side
    261,151,479.36x = 51,778,637,738,209,056
  5. Step 5: Solve for x
    x = 51,778,637,738,209,056/261,151,479.36
  6. Step 6: Final answer
    x = 198,270,512.83

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1.5x scale

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.