Home / 685,142,058.70-1,027,934,417.06-316,918,557.82

Finding the Fourth Proportional to 685,142,058.70, 1,027,934,417.06 and 316,918,557.82

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Solution

The fourth proportional to 685,142,058.70, 1,027,934,417.06 and 316,918,557.82 is: 475,480,214.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,142,058.70 : 1,027,934,417.06 = 316,918,557.82 : x
  2. Step 2: Convert to fraction form
    685,142,058.70/1,027,934,417.06 = 316,918,557.82/x
  3. Step 3: Cross multiply
    685,142,058.70x = 1,027,934,417.06 × 316,918,557.82
  4. Step 4: Simplify right side
    685,142,058.70x = 325,771,492,988,197,568
  5. Step 5: Solve for x
    x = 325,771,492,988,197,568/685,142,058.70
  6. Step 6: Final answer
    x = 475,480,214.43

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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.