Home / 38,988,969.96-53,804,791.56-21,348,988.20

Finding the Fourth Proportional to 38,988,969.96, 53,804,791.56 and 21,348,988.20

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Solution

The fourth proportional to 38,988,969.96, 53,804,791.56 and 21,348,988.20 is: 29,461,610.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,969.96 : 53,804,791.56 = 21,348,988.20 : x
  2. Step 2: Convert to fraction form
    38,988,969.96/53,804,791.56 = 21,348,988.20/x
  3. Step 3: Cross multiply
    38,988,969.96x = 53,804,791.56 × 21,348,988.20
  4. Step 4: Simplify right side
    38,988,969.96x = 1,148,677,860,117,899.50
  5. Step 5: Solve for x
    x = 1,148,677,860,117,899.50/38,988,969.96
  6. Step 6: Final answer
    x = 29,461,610.84

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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.