Home / 862,429,869.80-1,293,644,804.70-317,058,554.60

Finding the Fourth Proportional to 862,429,869.80, 1,293,644,804.70 and 317,058,554.60

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Solution

The fourth proportional to 862,429,869.80, 1,293,644,804.70 and 317,058,554.60 is: 475,587,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,429,869.80 : 1,293,644,804.70 = 317,058,554.60 : x
  2. Step 2: Convert to fraction form
    862,429,869.80/1,293,644,804.70 = 317,058,554.60/x
  3. Step 3: Cross multiply
    862,429,869.80x = 1,293,644,804.70 × 317,058,554.60
  4. Step 4: Simplify right side
    862,429,869.80x = 410,161,151,943,981,312
  5. Step 5: Solve for x
    x = 410,161,151,943,981,312/862,429,869.80
  6. Step 6: Final answer
    x = 475,587,831.90

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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.