Home / 13,545,562,848.72-18,688,659,509.15-7,827,764,218.44

Finding the Fourth Proportional to 13,545,562,848.72, 18,688,659,509.15 and 7,827,764,218.44

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Solution

The fourth proportional to 13,545,562,848.72, 18,688,659,509.15 and 7,827,764,218.44 is: 10,799,877,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,562,848.72 : 18,688,659,509.15 = 7,827,764,218.44 : x
  2. Step 2: Convert to fraction form
    13,545,562,848.72/18,688,659,509.15 = 7,827,764,218.44/x
  3. Step 3: Cross multiply
    13,545,562,848.72x = 18,688,659,509.15 × 7,827,764,218.44
  4. Step 4: Simplify right side
    13,545,562,848.72x = 146,290,420,196,332,830,720
  5. Step 5: Solve for x
    x = 146,290,420,196,332,830,720/13,545,562,848.72
  6. Step 6: Final answer
    x = 10,799,877,556.23

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1.5x scale

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.