Home / 1,265,504,077.80-1,898,256,116.70-345,473,418.60

Finding the Fourth Proportional to 1,265,504,077.80, 1,898,256,116.70 and 345,473,418.60

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Solution

The fourth proportional to 1,265,504,077.80, 1,898,256,116.70 and 345,473,418.60 is: 518,210,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,504,077.80 : 1,898,256,116.70 = 345,473,418.60 : x
  2. Step 2: Convert to fraction form
    1,265,504,077.80/1,898,256,116.70 = 345,473,418.60/x
  3. Step 3: Cross multiply
    1,265,504,077.80x = 1,898,256,116.70 × 345,473,418.60
  4. Step 4: Simplify right side
    1,265,504,077.80x = 655,797,030,014,709,632
  5. Step 5: Solve for x
    x = 655,797,030,014,709,632/1,265,504,077.80
  6. Step 6: Final answer
    x = 518,210,127.90

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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.