Home / 1,690,388,384.43-2,332,386,650.38-975,911,556.81

Finding the Fourth Proportional to 1,690,388,384.43, 2,332,386,650.38 and 975,911,556.81

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Solution

The fourth proportional to 1,690,388,384.43, 2,332,386,650.38 and 975,911,556.81 is: 1,346,556,275.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,388,384.43 : 2,332,386,650.38 = 975,911,556.81 : x
  2. Step 2: Convert to fraction form
    1,690,388,384.43/2,332,386,650.38 = 975,911,556.81/x
  3. Step 3: Cross multiply
    1,690,388,384.43x = 2,332,386,650.38 × 975,911,556.81
  4. Step 4: Simplify right side
    1,690,388,384.43x = 2,276,203,087,055,206,912
  5. Step 5: Solve for x
    x = 2,276,203,087,055,206,912/1,690,388,384.43
  6. Step 6: Final answer
    x = 1,346,556,275.48

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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.