Home / 561,556,048.27-774,924,065.76-307,236,157.12

Finding the Fourth Proportional to 561,556,048.27, 774,924,065.76 and 307,236,157.12

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Solution

The fourth proportional to 561,556,048.27, 774,924,065.76 and 307,236,157.12 is: 423,973,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,556,048.27 : 774,924,065.76 = 307,236,157.12 : x
  2. Step 2: Convert to fraction form
    561,556,048.27/774,924,065.76 = 307,236,157.12/x
  3. Step 3: Cross multiply
    561,556,048.27x = 774,924,065.76 × 307,236,157.12
  4. Step 4: Simplify right side
    561,556,048.27x = 238,084,692,023,908,576
  5. Step 5: Solve for x
    x = 238,084,692,023,908,576/561,556,048.27
  6. Step 6: Final answer
    x = 423,973,159.51

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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.