Home / 1,222,138,976,869.80-1,686,640,927,317.10-708,437,392,419.24

Finding the Fourth Proportional to 1,222,138,976,869.80, 1,686,640,927,317.10 and 708,437,392,419.24

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Solution

The fourth proportional to 1,222,138,976,869.80, 1,686,640,927,317.10 and 708,437,392,419.24 is: 977,695,272,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,138,976,869.80 : 1,686,640,927,317.10 = 708,437,392,419.24 : x
  2. Step 2: Convert to fraction form
    1,222,138,976,869.80/1,686,640,927,317.10 = 708,437,392,419.24/x
  3. Step 3: Cross multiply
    1,222,138,976,869.80x = 1,686,640,927,317.10 × 708,437,392,419.24
  4. Step 4: Simplify right side
    1,222,138,976,869.80x = 1,194,879,500,496,095,259,131,904
  5. Step 5: Solve for x
    x = 1,194,879,500,496,095,259,131,904/1,222,138,976,869.80
  6. Step 6: Final answer
    x = 977,695,272,886.62

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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.