Home / 839,563,860.80-1,259,876,632.80-494,516,820.80

Finding the Fourth Proportional to 839,563,860.80, 1,259,876,632.80 and 494,516,820.80

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Solution

The fourth proportional to 839,563,860.80, 1,259,876,632.80 and 494,516,820.80 is: 742,087,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,563,860.80 : 1,259,876,632.80 = 494,516,820.80 : x
  2. Step 2: Convert to fraction form
    839,563,860.80/1,259,876,632.80 = 494,516,820.80/x
  3. Step 3: Cross multiply
    839,563,860.80x = 1,259,876,632.80 × 494,516,820.80
  4. Step 4: Simplify right side
    839,563,860.80x = 623,030,187,052,465,024
  5. Step 5: Solve for x
    x = 623,030,187,052,465,024/839,563,860.80
  6. Step 6: Final answer
    x = 742,087,905.57

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1.5x scale

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.