Home / 19,428,928.40-29,143,392.60-18,869,056.40

Finding the Fourth Proportional to 19,428,928.40, 29,143,392.60 and 18,869,056.40

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Solution

The fourth proportional to 19,428,928.40, 29,143,392.60 and 18,869,056.40 is: 28,303,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428,928.40 : 29,143,392.60 = 18,869,056.40 : x
  2. Step 2: Convert to fraction form
    19,428,928.40/29,143,392.60 = 18,869,056.40/x
  3. Step 3: Cross multiply
    19,428,928.40x = 29,143,392.60 × 18,869,056.40
  4. Step 4: Simplify right side
    19,428,928.40x = 549,908,318,656,742.62
  5. Step 5: Solve for x
    x = 549,908,318,656,742.62/19,428,928.40
  6. Step 6: Final answer
    x = 28,303,584.60

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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.