Home / 1,315,697,445.54-1,973,527,570.89-319,725,795.78

Finding the Fourth Proportional to 1,315,697,445.54, 1,973,527,570.89 and 319,725,795.78

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Solution

The fourth proportional to 1,315,697,445.54, 1,973,527,570.89 and 319,725,795.78 is: 479,584,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,697,445.54 : 1,973,527,570.89 = 319,725,795.78 : x
  2. Step 2: Convert to fraction form
    1,315,697,445.54/1,973,527,570.89 = 319,725,795.78/x
  3. Step 3: Cross multiply
    1,315,697,445.54x = 1,973,527,570.89 × 319,725,795.78
  4. Step 4: Simplify right side
    1,315,697,445.54x = 630,987,673,096,575,616
  5. Step 5: Solve for x
    x = 630,987,673,096,575,616/1,315,697,445.54
  6. Step 6: Final answer
    x = 479,584,174.34

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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.