Home / 555,893,305,394.20-767,090,661,333.58-311,975,665,835.10

Finding the Fourth Proportional to 555,893,305,394.20, 767,090,661,333.58 and 311,975,665,835.10

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Solution

The fourth proportional to 555,893,305,394.20, 767,090,661,333.58 and 311,975,665,835.10 is: 430,502,791,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,893,305,394.20 : 767,090,661,333.58 = 311,975,665,835.10 : x
  2. Step 2: Convert to fraction form
    555,893,305,394.20/767,090,661,333.58 = 311,975,665,835.10/x
  3. Step 3: Cross multiply
    555,893,305,394.20x = 767,090,661,333.58 × 311,975,665,835.10
  4. Step 4: Simplify right side
    555,893,305,394.20x = 239,313,619,825,430,796,173,312
  5. Step 5: Solve for x
    x = 239,313,619,825,430,796,173,312/555,893,305,394.20
  6. Step 6: Final answer
    x = 430,502,791,638.63

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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.