Home / 19,118,705.79-28,650,240-11,816,575.23

Finding the Fourth Proportional to 19,118,705.79, 28,650,240 and 11,816,575.23

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Solution

The fourth proportional to 19,118,705.79, 28,650,240 and 11,816,575.23 is: 17,707,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,705.79 : 28,650,240 = 11,816,575.23 : x
  2. Step 2: Convert to fraction form
    19,118,705.79/28,650,240 = 11,816,575.23/x
  3. Step 3: Cross multiply
    19,118,705.79x = 28,650,240 × 11,816,575.23
  4. Step 4: Simplify right side
    19,118,705.79x = 338,547,716,317,555.19
  5. Step 5: Solve for x
    x = 338,547,716,317,555.19/19,118,705.79
  6. Step 6: Final answer
    x = 17,707,669.13

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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.