Home / 552,991,987.31-763,140,192.05-302,112,628.58

Finding the Fourth Proportional to 552,991,987.31, 763,140,192.05 and 302,112,628.58

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Solution

The fourth proportional to 552,991,987.31, 763,140,192.05 and 302,112,628.58 is: 416,921,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,991,987.31 : 763,140,192.05 = 302,112,628.58 : x
  2. Step 2: Convert to fraction form
    552,991,987.31/763,140,192.05 = 302,112,628.58/x
  3. Step 3: Cross multiply
    552,991,987.31x = 763,140,192.05 × 302,112,628.58
  4. Step 4: Simplify right side
    552,991,987.31x = 230,554,289,397,934,624
  5. Step 5: Solve for x
    x = 230,554,289,397,934,624/552,991,987.31
  6. Step 6: Final answer
    x = 416,921,573.35

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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.