Home / 1,179,264,328.40-1,768,896,492.60-317,621,320.40

Finding the Fourth Proportional to 1,179,264,328.40, 1,768,896,492.60 and 317,621,320.40

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Solution

The fourth proportional to 1,179,264,328.40, 1,768,896,492.60 and 317,621,320.40 is: 476,431,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,264,328.40 : 1,768,896,492.60 = 317,621,320.40 : x
  2. Step 2: Convert to fraction form
    1,179,264,328.40/1,768,896,492.60 = 317,621,320.40/x
  3. Step 3: Cross multiply
    1,179,264,328.40x = 1,768,896,492.60 × 317,621,320.40
  4. Step 4: Simplify right side
    1,179,264,328.40x = 561,839,239,630,540,736
  5. Step 5: Solve for x
    x = 561,839,239,630,540,736/1,179,264,328.40
  6. Step 6: Final answer
    x = 476,431,980.60

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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.