Home / 21,051,501.44-29,051,638.08-12,788,752.64

Finding the Fourth Proportional to 21,051,501.44, 29,051,638.08 and 12,788,752.64

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Solution

The fourth proportional to 21,051,501.44, 29,051,638.08 and 12,788,752.64 is: 17,648,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051,501.44 : 29,051,638.08 = 12,788,752.64 : x
  2. Step 2: Convert to fraction form
    21,051,501.44/29,051,638.08 = 12,788,752.64/x
  3. Step 3: Cross multiply
    21,051,501.44x = 29,051,638.08 × 12,788,752.64
  4. Step 4: Simplify right side
    21,051,501.44x = 371,534,213,191,924.50
  5. Step 5: Solve for x
    x = 371,534,213,191,924.50/21,051,501.44
  6. Step 6: Final answer
    x = 17,648,822.54

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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.