Home / 38,740,642.79-53,464,513.86-21,336,984

Finding the Fourth Proportional to 38,740,642.79, 53,464,513.86 and 21,336,984

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Solution

The fourth proportional to 38,740,642.79, 53,464,513.86 and 21,336,984 is: 29,446,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,740,642.79 : 53,464,513.86 = 21,336,984 : x
  2. Step 2: Convert to fraction form
    38,740,642.79/53,464,513.86 = 21,336,984/x
  3. Step 3: Cross multiply
    38,740,642.79x = 53,464,513.86 × 21,336,984
  4. Step 4: Simplify right side
    38,740,642.79x = 1,140,771,476,798,598.25
  5. Step 5: Solve for x
    x = 1,140,771,476,798,598.25/38,740,642.79
  6. Step 6: Final answer
    x = 29,446,374.53

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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.