Home / 1,245,773,479.80-1,868,660,219.70-325,742,820.60

Finding the Fourth Proportional to 1,245,773,479.80, 1,868,660,219.70 and 325,742,820.60

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Solution

The fourth proportional to 1,245,773,479.80, 1,868,660,219.70 and 325,742,820.60 is: 488,614,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,773,479.80 : 1,868,660,219.70 = 325,742,820.60 : x
  2. Step 2: Convert to fraction form
    1,245,773,479.80/1,868,660,219.70 = 325,742,820.60/x
  3. Step 3: Cross multiply
    1,245,773,479.80x = 1,868,660,219.70 × 325,742,820.60
  4. Step 4: Simplify right side
    1,245,773,479.80x = 608,702,650,708,093,696
  5. Step 5: Solve for x
    x = 608,702,650,708,093,696/1,245,773,479.80
  6. Step 6: Final answer
    x = 488,614,230.90

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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.