Home / 28,081,157,736.40-42,121,736,604.60-9,442,458,984.40

Finding the Fourth Proportional to 28,081,157,736.40, 42,121,736,604.60 and 9,442,458,984.40

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Solution

The fourth proportional to 28,081,157,736.40, 42,121,736,604.60 and 9,442,458,984.40 is: 14,163,688,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,157,736.40 : 42,121,736,604.60 = 9,442,458,984.40 : x
  2. Step 2: Convert to fraction form
    28,081,157,736.40/42,121,736,604.60 = 9,442,458,984.40/x
  3. Step 3: Cross multiply
    28,081,157,736.40x = 42,121,736,604.60 × 9,442,458,984.40
  4. Step 4: Simplify right side
    28,081,157,736.40x = 397,732,770,240,635,600,896
  5. Step 5: Solve for x
    x = 397,732,770,240,635,600,896/28,081,157,736.40
  6. Step 6: Final answer
    x = 14,163,688,476.60

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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.