Home / 943,872,812.72-1,302,477,968.76-526,166,621.36

Finding the Fourth Proportional to 943,872,812.72, 1,302,477,968.76 and 526,166,621.36

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Solution

The fourth proportional to 943,872,812.72, 1,302,477,968.76 and 526,166,621.36 is: 726,072,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,872,812.72 : 1,302,477,968.76 = 526,166,621.36 : x
  2. Step 2: Convert to fraction form
    943,872,812.72/1,302,477,968.76 = 526,166,621.36/x
  3. Step 3: Cross multiply
    943,872,812.72x = 1,302,477,968.76 × 526,166,621.36
  4. Step 4: Simplify right side
    943,872,812.72x = 685,320,432,218,284,800
  5. Step 5: Solve for x
    x = 685,320,432,218,284,800/943,872,812.72
  6. Step 6: Final answer
    x = 726,072,859.59

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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.