Home / 1,260,192,040.80-1,890,288,061.20-340,066,903.20

Finding the Fourth Proportional to 1,260,192,040.80, 1,890,288,061.20 and 340,066,903.20

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Solution

The fourth proportional to 1,260,192,040.80, 1,890,288,061.20 and 340,066,903.20 is: 510,100,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,192,040.80 : 1,890,288,061.20 = 340,066,903.20 : x
  2. Step 2: Convert to fraction form
    1,260,192,040.80/1,890,288,061.20 = 340,066,903.20/x
  3. Step 3: Cross multiply
    1,260,192,040.80x = 1,890,288,061.20 × 340,066,903.20
  4. Step 4: Simplify right side
    1,260,192,040.80x = 642,824,407,128,216,064
  5. Step 5: Solve for x
    x = 642,824,407,128,216,064/1,260,192,040.80
  6. Step 6: Final answer
    x = 510,100,354.80

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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.