Home / 61,637,135.22-85,018,290.12-39,638,447.28

Finding the Fourth Proportional to 61,637,135.22, 85,018,290.12 and 39,638,447.28

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Solution

The fourth proportional to 61,637,135.22, 85,018,290.12 and 39,638,447.28 is: 54,674,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,637,135.22 : 85,018,290.12 = 39,638,447.28 : x
  2. Step 2: Convert to fraction form
    61,637,135.22/85,018,290.12 = 39,638,447.28/x
  3. Step 3: Cross multiply
    61,637,135.22x = 85,018,290.12 × 39,638,447.28
  4. Step 4: Simplify right side
    61,637,135.22x = 3,369,993,010,757,365
  5. Step 5: Solve for x
    x = 3,369,993,010,757,365/61,637,135.22
  6. Step 6: Final answer
    x = 54,674,718.39

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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.