Home / 40,055,747.58-55,276,931.79-21,721,047.66

Finding the Fourth Proportional to 40,055,747.58, 55,276,931.79 and 21,721,047.66

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Solution

The fourth proportional to 40,055,747.58, 55,276,931.79 and 21,721,047.66 is: 29,975,045.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,055,747.58 : 55,276,931.79 = 21,721,047.66 : x
  2. Step 2: Convert to fraction form
    40,055,747.58/55,276,931.79 = 21,721,047.66/x
  3. Step 3: Cross multiply
    40,055,747.58x = 55,276,931.79 × 21,721,047.66
  4. Step 4: Simplify right side
    40,055,747.58x = 1,200,672,869,909,159
  5. Step 5: Solve for x
    x = 1,200,672,869,909,159/40,055,747.58
  6. Step 6: Final answer
    x = 29,975,045.84

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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.