Home / 638,547,869.80-957,963,522.30-293,418,274.60

Finding the Fourth Proportional to 638,547,869.80, 957,963,522.30 and 293,418,274.60

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Solution

The fourth proportional to 638,547,869.80, 957,963,522.30 and 293,418,274.60 is: 440,192,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,547,869.80 : 957,963,522.30 = 293,418,274.60 : x
  2. Step 2: Convert to fraction form
    638,547,869.80/957,963,522.30 = 293,418,274.60/x
  3. Step 3: Cross multiply
    638,547,869.80x = 957,963,522.30 × 293,418,274.60
  4. Step 4: Simplify right side
    638,547,869.80x = 281,084,003,843,004,640
  5. Step 5: Solve for x
    x = 281,084,003,843,004,640/638,547,869.80
  6. Step 6: Final answer
    x = 440,192,532.36

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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.