Home / 1,071,267,939.09-1,604,455,409.70-511,423,574.31

Finding the Fourth Proportional to 1,071,267,939.09, 1,604,455,409.70 and 511,423,574.31

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Solution

The fourth proportional to 1,071,267,939.09, 1,604,455,409.70 and 511,423,574.31 is: 765,967,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,267,939.09 : 1,604,455,409.70 = 511,423,574.31 : x
  2. Step 2: Convert to fraction form
    1,071,267,939.09/1,604,455,409.70 = 511,423,574.31/x
  3. Step 3: Cross multiply
    1,071,267,939.09x = 1,604,455,409.70 × 511,423,574.31
  4. Step 4: Simplify right side
    1,071,267,939.09x = 820,556,320,449,789,440
  5. Step 5: Solve for x
    x = 820,556,320,449,789,440/1,071,267,939.09
  6. Step 6: Final answer
    x = 765,967,402.28

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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.