Home / 1,112,292,328.80-1,668,438,493.20-646,750,012.80

Finding the Fourth Proportional to 1,112,292,328.80, 1,668,438,493.20 and 646,750,012.80

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Solution

The fourth proportional to 1,112,292,328.80, 1,668,438,493.20 and 646,750,012.80 is: 970,125,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,292,328.80 : 1,668,438,493.20 = 646,750,012.80 : x
  2. Step 2: Convert to fraction form
    1,112,292,328.80/1,668,438,493.20 = 646,750,012.80/x
  3. Step 3: Cross multiply
    1,112,292,328.80x = 1,668,438,493.20 × 646,750,012.80
  4. Step 4: Simplify right side
    1,112,292,328.80x = 1,079,062,616,833,112,704
  5. Step 5: Solve for x
    x = 1,079,062,616,833,112,704/1,112,292,328.80
  6. Step 6: Final answer
    x = 970,125,019.20

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Double scale
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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.