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Finding the Fourth Proportional to 553,761,803.20, 830,642,704.80 and 230,603,684.80

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Solution

The fourth proportional to 553,761,803.20, 830,642,704.80 and 230,603,684.80 is: 345,905,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,761,803.20 : 830,642,704.80 = 230,603,684.80 : x
  2. Step 2: Convert to fraction form
    553,761,803.20/830,642,704.80 = 230,603,684.80/x
  3. Step 3: Cross multiply
    553,761,803.20x = 830,642,704.80 × 230,603,684.80
  4. Step 4: Simplify right side
    553,761,803.20x = 191,549,268,479,118,656
  5. Step 5: Solve for x
    x = 191,549,268,479,118,656/553,761,803.20
  6. Step 6: Final answer
    x = 345,905,527.20

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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.