Home / 168,863,763,170.64-253,338,518,572.68-78,170,563,809.12

Finding the Fourth Proportional to 168,863,763,170.64, 253,338,518,572.68 and 78,170,563,809.12

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Solution

The fourth proportional to 168,863,763,170.64, 253,338,518,572.68 and 78,170,563,809.12 is: 117,275,692,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,863,763,170.64 : 253,338,518,572.68 = 78,170,563,809.12 : x
  2. Step 2: Convert to fraction form
    168,863,763,170.64/253,338,518,572.68 = 78,170,563,809.12/x
  3. Step 3: Cross multiply
    168,863,763,170.64x = 253,338,518,572.68 × 78,170,563,809.12
  4. Step 4: Simplify right side
    168,863,763,170.64x = 19,803,614,831,393,611,186,176
  5. Step 5: Solve for x
    x = 19,803,614,831,393,611,186,176/168,863,763,170.64
  6. Step 6: Final answer
    x = 117,275,692,899.14

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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.