Home / 382,643,119.22-528,013,819.40-213,084,547.25

Finding the Fourth Proportional to 382,643,119.22, 528,013,819.40 and 213,084,547.25

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Solution

The fourth proportional to 382,643,119.22, 528,013,819.40 and 213,084,547.25 is: 294,037,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,643,119.22 : 528,013,819.40 = 213,084,547.25 : x
  2. Step 2: Convert to fraction form
    382,643,119.22/528,013,819.40 = 213,084,547.25/x
  3. Step 3: Cross multiply
    382,643,119.22x = 528,013,819.40 × 213,084,547.25
  4. Step 4: Simplify right side
    382,643,119.22x = 112,511,585,644,886,768
  5. Step 5: Solve for x
    x = 112,511,585,644,886,768/382,643,119.22
  6. Step 6: Final answer
    x = 294,037,916.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.