Home / 28,133,458,288.40-38,824,248,832.44-15,447,015,670.16

Finding the Fourth Proportional to 28,133,458,288.40, 38,824,248,832.44 and 15,447,015,670.16

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Solution

The fourth proportional to 28,133,458,288.40, 38,824,248,832.44 and 15,447,015,670.16 is: 21,316,923,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133,458,288.40 : 38,824,248,832.44 = 15,447,015,670.16 : x
  2. Step 2: Convert to fraction form
    28,133,458,288.40/38,824,248,832.44 = 15,447,015,670.16/x
  3. Step 3: Cross multiply
    28,133,458,288.40x = 38,824,248,832.44 × 15,447,015,670.16
  4. Step 4: Simplify right side
    28,133,458,288.40x = 599,718,780,096,891,846,656
  5. Step 5: Solve for x
    x = 599,718,780,096,891,846,656/28,133,458,288.40
  6. Step 6: Final answer
    x = 21,316,923,570.12

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.