Home / 515,073,347.80-772,610,021.70-170,080,221.40

Finding the Fourth Proportional to 515,073,347.80, 772,610,021.70 and 170,080,221.40

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Solution

The fourth proportional to 515,073,347.80, 772,610,021.70 and 170,080,221.40 is: 255,120,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,073,347.80 : 772,610,021.70 = 170,080,221.40 : x
  2. Step 2: Convert to fraction form
    515,073,347.80/772,610,021.70 = 170,080,221.40/x
  3. Step 3: Cross multiply
    515,073,347.80x = 772,610,021.70 × 170,080,221.40
  4. Step 4: Simplify right side
    515,073,347.80x = 131,405,683,546,594,816
  5. Step 5: Solve for x
    x = 131,405,683,546,594,816/515,073,347.80
  6. Step 6: Final answer
    x = 255,120,332.10

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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.