Home / 38,711,396,090.81-53,414,634,905.42-21,563,822,639.54

Finding the Fourth Proportional to 38,711,396,090.81, 53,414,634,905.42 and 21,563,822,639.54

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Solution

The fourth proportional to 38,711,396,090.81, 53,414,634,905.42 and 21,563,822,639.54 is: 29,754,124,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711,396,090.81 : 53,414,634,905.42 = 21,563,822,639.54 : x
  2. Step 2: Convert to fraction form
    38,711,396,090.81/53,414,634,905.42 = 21,563,822,639.54/x
  3. Step 3: Cross multiply
    38,711,396,090.81x = 53,414,634,905.42 × 21,563,822,639.54
  4. Step 4: Simplify right side
    38,711,396,090.81x = 1,151,823,713,455,884,468,224
  5. Step 5: Solve for x
    x = 1,151,823,713,455,884,468,224/38,711,396,090.81
  6. Step 6: Final answer
    x = 29,754,124,877.18

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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.