Home / 18,893,079.60-28,339,619.40-7,535,281.20

Finding the Fourth Proportional to 18,893,079.60, 28,339,619.40 and 7,535,281.20

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Solution

The fourth proportional to 18,893,079.60, 28,339,619.40 and 7,535,281.20 is: 11,302,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,893,079.60 : 28,339,619.40 = 7,535,281.20 : x
  2. Step 2: Convert to fraction form
    18,893,079.60/28,339,619.40 = 7,535,281.20/x
  3. Step 3: Cross multiply
    18,893,079.60x = 28,339,619.40 × 7,535,281.20
  4. Step 4: Simplify right side
    18,893,079.60x = 213,547,001,279,975.28
  5. Step 5: Solve for x
    x = 213,547,001,279,975.28/18,893,079.60
  6. Step 6: Final answer
    x = 11,302,921.80

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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.