Home / 18,879,111.40-28,333,412.70-8,782,983.40

Finding the Fourth Proportional to 18,879,111.40, 28,333,412.70 and 8,782,983.40

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Solution

The fourth proportional to 18,879,111.40, 28,333,412.70 and 8,782,983.40 is: 13,181,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879,111.40 : 28,333,412.70 = 8,782,983.40 : x
  2. Step 2: Convert to fraction form
    18,879,111.40/28,333,412.70 = 8,782,983.40/x
  3. Step 3: Cross multiply
    18,879,111.40x = 28,333,412.70 × 8,782,983.40
  4. Step 4: Simplify right side
    18,879,111.40x = 248,851,893,409,449.19
  5. Step 5: Solve for x
    x = 248,851,893,409,449.19/18,879,111.40
  6. Step 6: Final answer
    x = 13,181,335.08

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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.