Home / 21,139,948.90-31,695,926.55-7,675,027.30

Finding the Fourth Proportional to 21,139,948.90, 31,695,926.55 and 7,675,027.30

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Solution

The fourth proportional to 21,139,948.90, 31,695,926.55 and 7,675,027.30 is: 11,507,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,139,948.90 : 31,695,926.55 = 7,675,027.30 : x
  2. Step 2: Convert to fraction form
    21,139,948.90/31,695,926.55 = 7,675,027.30/x
  3. Step 3: Cross multiply
    21,139,948.90x = 31,695,926.55 × 7,675,027.30
  4. Step 4: Simplify right side
    21,139,948.90x = 243,267,101,570,044.81
  5. Step 5: Solve for x
    x = 243,267,101,570,044.81/21,139,948.90
  6. Step 6: Final answer
    x = 11,507,459.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.