Home / 290,481,393.12-400,878,503.86-163,362,071.43

Finding the Fourth Proportional to 290,481,393.12, 400,878,503.86 and 163,362,071.43

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Solution

The fourth proportional to 290,481,393.12, 400,878,503.86 and 163,362,071.43 is: 225,447,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,481,393.12 : 400,878,503.86 = 163,362,071.43 : x
  2. Step 2: Convert to fraction form
    290,481,393.12/400,878,503.86 = 163,362,071.43/x
  3. Step 3: Cross multiply
    290,481,393.12x = 400,878,503.86 × 163,362,071.43
  4. Step 4: Simplify right side
    290,481,393.12x = 65,488,342,779,916,064
  5. Step 5: Solve for x
    x = 65,488,342,779,916,064/290,481,393.12
  6. Step 6: Final answer
    x = 225,447,633.93

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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.