Home / 515,743,428.80-773,615,143.20-170,731,931.60

Finding the Fourth Proportional to 515,743,428.80, 773,615,143.20 and 170,731,931.60

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Solution

The fourth proportional to 515,743,428.80, 773,615,143.20 and 170,731,931.60 is: 256,097,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,743,428.80 : 773,615,143.20 = 170,731,931.60 : x
  2. Step 2: Convert to fraction form
    515,743,428.80/773,615,143.20 = 170,731,931.60/x
  3. Step 3: Cross multiply
    515,743,428.80x = 773,615,143.20 × 170,731,931.60
  4. Step 4: Simplify right side
    515,743,428.80x = 132,080,807,713,546,608
  5. Step 5: Solve for x
    x = 132,080,807,713,546,608/515,743,428.80
  6. Step 6: Final answer
    x = 256,097,897.40

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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.