Home / 818,454,825.28-1,129,454,312-447,168,865.60

Finding the Fourth Proportional to 818,454,825.28, 1,129,454,312 and 447,168,865.60

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Solution

The fourth proportional to 818,454,825.28, 1,129,454,312 and 447,168,865.60 is: 617,085,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,454,825.28 : 1,129,454,312 = 447,168,865.60 : x
  2. Step 2: Convert to fraction form
    818,454,825.28/1,129,454,312 = 447,168,865.60/x
  3. Step 3: Cross multiply
    818,454,825.28x = 1,129,454,312 × 447,168,865.60
  4. Step 4: Simplify right side
    818,454,825.28x = 505,056,803,444,068,480
  5. Step 5: Solve for x
    x = 505,056,803,444,068,480/818,454,825.28
  6. Step 6: Final answer
    x = 617,085,742.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.