Home / 712,055,429.40-1,068,272,100.90-251,945,621.40

Finding the Fourth Proportional to 712,055,429.40, 1,068,272,100.90 and 251,945,621.40

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Solution

The fourth proportional to 712,055,429.40, 1,068,272,100.90 and 251,945,621.40 is: 377,985,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,055,429.40 : 1,068,272,100.90 = 251,945,621.40 : x
  2. Step 2: Convert to fraction form
    712,055,429.40/1,068,272,100.90 = 251,945,621.40/x
  3. Step 3: Cross multiply
    712,055,429.40x = 1,068,272,100.90 × 251,945,621.40
  4. Step 4: Simplify right side
    712,055,429.40x = 269,146,478,285,533,984
  5. Step 5: Solve for x
    x = 269,146,478,285,533,984/712,055,429.40
  6. Step 6: Final answer
    x = 377,985,290.43

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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.