Home / 38,606,534.48-53,276,811.45-20,965,282.80

Finding the Fourth Proportional to 38,606,534.48, 53,276,811.45 and 20,965,282.80

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Solution

The fourth proportional to 38,606,534.48, 53,276,811.45 and 20,965,282.80 is: 28,931,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,606,534.48 : 53,276,811.45 = 20,965,282.80 : x
  2. Step 2: Convert to fraction form
    38,606,534.48/53,276,811.45 = 20,965,282.80/x
  3. Step 3: Cross multiply
    38,606,534.48x = 53,276,811.45 × 20,965,282.80
  4. Step 4: Simplify right side
    38,606,534.48x = 1,116,963,418,731,528.12
  5. Step 5: Solve for x
    x = 1,116,963,418,731,528.12/38,606,534.48
  6. Step 6: Final answer
    x = 28,931,978.33

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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.