Home / 431,551,211.20-647,326,816.80-247,885,201.60

Finding the Fourth Proportional to 431,551,211.20, 647,326,816.80 and 247,885,201.60

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Solution

The fourth proportional to 431,551,211.20, 647,326,816.80 and 247,885,201.60 is: 371,827,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,551,211.20 : 647,326,816.80 = 247,885,201.60 : x
  2. Step 2: Convert to fraction form
    431,551,211.20/647,326,816.80 = 247,885,201.60/x
  3. Step 3: Cross multiply
    431,551,211.20x = 647,326,816.80 × 247,885,201.60
  4. Step 4: Simplify right side
    431,551,211.20x = 160,462,738,483,554,240
  5. Step 5: Solve for x
    x = 160,462,738,483,554,240/431,551,211.20
  6. Step 6: Final answer
    x = 371,827,802.40

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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.