Home / 199,281,661.20-298,922,491.80-122,355,248.40

Finding the Fourth Proportional to 199,281,661.20, 298,922,491.80 and 122,355,248.40

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Solution

The fourth proportional to 199,281,661.20, 298,922,491.80 and 122,355,248.40 is: 183,532,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,281,661.20 : 298,922,491.80 = 122,355,248.40 : x
  2. Step 2: Convert to fraction form
    199,281,661.20/298,922,491.80 = 122,355,248.40/x
  3. Step 3: Cross multiply
    199,281,661.20x = 298,922,491.80 × 122,355,248.40
  4. Step 4: Simplify right side
    199,281,661.20x = 36,574,735,736,535,968
  5. Step 5: Solve for x
    x = 36,574,735,736,535,968/199,281,661.20
  6. Step 6: Final answer
    x = 183,532,872.60

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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.