Home / 780,052,289.40-1,170,078,434.10-262,310,657.40

Finding the Fourth Proportional to 780,052,289.40, 1,170,078,434.10 and 262,310,657.40

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Solution

The fourth proportional to 780,052,289.40, 1,170,078,434.10 and 262,310,657.40 is: 393,465,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,052,289.40 : 1,170,078,434.10 = 262,310,657.40 : x
  2. Step 2: Convert to fraction form
    780,052,289.40/1,170,078,434.10 = 262,310,657.40/x
  3. Step 3: Cross multiply
    780,052,289.40x = 1,170,078,434.10 × 262,310,657.40
  4. Step 4: Simplify right side
    780,052,289.40x = 306,924,043,258,333,568
  5. Step 5: Solve for x
    x = 306,924,043,258,333,568/780,052,289.40
  6. Step 6: Final answer
    x = 393,465,986.10

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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.