Home / 28,081,157,734.40-42,121,736,601.60-9,442,458,982.40

Finding the Fourth Proportional to 28,081,157,734.40, 42,121,736,601.60 and 9,442,458,982.40

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Solution

The fourth proportional to 28,081,157,734.40, 42,121,736,601.60 and 9,442,458,982.40 is: 14,163,688,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,157,734.40 : 42,121,736,601.60 = 9,442,458,982.40 : x
  2. Step 2: Convert to fraction form
    28,081,157,734.40/42,121,736,601.60 = 9,442,458,982.40/x
  3. Step 3: Cross multiply
    28,081,157,734.40x = 42,121,736,601.60 × 9,442,458,982.40
  4. Step 4: Simplify right side
    28,081,157,734.40x = 397,732,770,128,064,741,376
  5. Step 5: Solve for x
    x = 397,732,770,128,064,741,376/28,081,157,734.40
  6. Step 6: Final answer
    x = 14,163,688,473.60

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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.