Home / 1,172,165,786.40-1,758,248,679.60-298,765,466.40

Finding the Fourth Proportional to 1,172,165,786.40, 1,758,248,679.60 and 298,765,466.40

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Solution

The fourth proportional to 1,172,165,786.40, 1,758,248,679.60 and 298,765,466.40 is: 448,148,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,165,786.40 : 1,758,248,679.60 = 298,765,466.40 : x
  2. Step 2: Convert to fraction form
    1,172,165,786.40/1,758,248,679.60 = 298,765,466.40/x
  3. Step 3: Cross multiply
    1,172,165,786.40x = 1,758,248,679.60 × 298,765,466.40
  4. Step 4: Simplify right side
    1,172,165,786.40x = 525,303,986,807,878,080
  5. Step 5: Solve for x
    x = 525,303,986,807,878,080/1,172,165,786.40
  6. Step 6: Final answer
    x = 448,148,199.60

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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.