Home / 19,118,707.80-28,650,243-11,816,577.24

Finding the Fourth Proportional to 19,118,707.80, 28,650,243 and 11,816,577.24

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Solution

The fourth proportional to 19,118,707.80, 28,650,243 and 11,816,577.24 is: 17,707,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,707.80 : 28,650,243 = 11,816,577.24 : x
  2. Step 2: Convert to fraction form
    19,118,707.80/28,650,243 = 11,816,577.24/x
  3. Step 3: Cross multiply
    19,118,707.80x = 28,650,243 × 11,816,577.24
  4. Step 4: Simplify right side
    19,118,707.80x = 338,547,809,354,269.31
  5. Step 5: Solve for x
    x = 338,547,809,354,269.31/19,118,707.80
  6. Step 6: Final answer
    x = 17,707,672.13

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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.