Home / 1,243,555,920.40-1,866,528,274.20-630,832,003.60

Finding the Fourth Proportional to 1,243,555,920.40, 1,866,528,274.20 and 630,832,003.60

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Solution

The fourth proportional to 1,243,555,920.40, 1,866,528,274.20 and 630,832,003.60 is: 946,853,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,555,920.40 : 1,866,528,274.20 = 630,832,003.60 : x
  2. Step 2: Convert to fraction form
    1,243,555,920.40/1,866,528,274.20 = 630,832,003.60/x
  3. Step 3: Cross multiply
    1,243,555,920.40x = 1,866,528,274.20 × 630,832,003.60
  4. Step 4: Simplify right side
    1,243,555,920.40x = 1,177,465,770,989,636,352
  5. Step 5: Solve for x
    x = 1,177,465,770,989,636,352/1,243,555,920.40
  6. Step 6: Final answer
    x = 946,853,898.30

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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.