Home / 350,208,947.20-525,313,420.80-212,256,486.40

Finding the Fourth Proportional to 350,208,947.20, 525,313,420.80 and 212,256,486.40

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Solution

The fourth proportional to 350,208,947.20, 525,313,420.80 and 212,256,486.40 is: 318,384,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,208,947.20 : 525,313,420.80 = 212,256,486.40 : x
  2. Step 2: Convert to fraction form
    350,208,947.20/525,313,420.80 = 212,256,486.40/x
  3. Step 3: Cross multiply
    350,208,947.20x = 525,313,420.80 × 212,256,486.40
  4. Step 4: Simplify right side
    350,208,947.20x = 111,501,180,957,772,688
  5. Step 5: Solve for x
    x = 111,501,180,957,772,688/350,208,947.20
  6. Step 6: Final answer
    x = 318,384,729.60

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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.