Home / 703,539,938.40-1,055,309,907.60-314,950,279.20

Finding the Fourth Proportional to 703,539,938.40, 1,055,309,907.60 and 314,950,279.20

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Solution

The fourth proportional to 703,539,938.40, 1,055,309,907.60 and 314,950,279.20 is: 472,425,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,539,938.40 : 1,055,309,907.60 = 314,950,279.20 : x
  2. Step 2: Convert to fraction form
    703,539,938.40/1,055,309,907.60 = 314,950,279.20/x
  3. Step 3: Cross multiply
    703,539,938.40x = 1,055,309,907.60 × 314,950,279.20
  4. Step 4: Simplify right side
    703,539,938.40x = 332,370,150,041,146,176
  5. Step 5: Solve for x
    x = 332,370,150,041,146,176/703,539,938.40
  6. Step 6: Final answer
    x = 472,425,418.80

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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.