Home / 168,863,763,168.76-253,338,518,569.85-78,170,563,807.25

Finding the Fourth Proportional to 168,863,763,168.76, 253,338,518,569.85 and 78,170,563,807.25

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Solution

The fourth proportional to 168,863,763,168.76, 253,338,518,569.85 and 78,170,563,807.25 is: 117,275,692,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863,763,168.76 : 253,338,518,569.85 = 78,170,563,807.25 : x
  2. Step 2: Convert to fraction form
    168,863,763,168.76/253,338,518,569.85 = 78,170,563,807.25/x
  3. Step 3: Cross multiply
    168,863,763,168.76x = 253,338,518,569.85 × 78,170,563,807.25
  4. Step 4: Simplify right side
    168,863,763,168.76x = 19,803,614,830,697,381,888,000
  5. Step 5: Solve for x
    x = 19,803,614,830,697,381,888,000/168,863,763,168.76
  6. Step 6: Final answer
    x = 117,275,692,896.33

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1.5x scale

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.