Home / 19,326,828.80-28,990,243.20-12,956,729.60

Finding the Fourth Proportional to 19,326,828.80, 28,990,243.20 and 12,956,729.60

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Solution

The fourth proportional to 19,326,828.80, 28,990,243.20 and 12,956,729.60 is: 19,435,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326,828.80 : 28,990,243.20 = 12,956,729.60 : x
  2. Step 2: Convert to fraction form
    19,326,828.80/28,990,243.20 = 12,956,729.60/x
  3. Step 3: Cross multiply
    19,326,828.80x = 28,990,243.20 × 12,956,729.60
  4. Step 4: Simplify right side
    19,326,828.80x = 375,618,742,180,638.69
  5. Step 5: Solve for x
    x = 375,618,742,180,638.69/19,326,828.80
  6. Step 6: Final answer
    x = 19,435,094.40

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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.