Home / 1,213,995,815.16-1,821,059,946.90-384,889,495.08

Finding the Fourth Proportional to 1,213,995,815.16, 1,821,059,946.90 and 384,889,495.08

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Solution

The fourth proportional to 1,213,995,815.16, 1,821,059,946.90 and 384,889,495.08 is: 577,355,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,995,815.16 : 1,821,059,946.90 = 384,889,495.08 : x
  2. Step 2: Convert to fraction form
    1,213,995,815.16/1,821,059,946.90 = 384,889,495.08/x
  3. Step 3: Cross multiply
    1,213,995,815.16x = 1,821,059,946.90 × 384,889,495.08
  4. Step 4: Simplify right side
    1,213,995,815.16x = 700,906,843,472,752,640
  5. Step 5: Solve for x
    x = 700,906,843,472,752,640/1,213,995,815.16
  6. Step 6: Final answer
    x = 577,355,238.56

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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.