Home / 52,021,071-78,031,383.72-13,159,890.84

Finding the Fourth Proportional to 52,021,071, 78,031,383.72 and 13,159,890.84

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Solution

The fourth proportional to 52,021,071, 78,031,383.72 and 13,159,890.84 is: 19,739,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,021,071 : 78,031,383.72 = 13,159,890.84 : x
  2. Step 2: Convert to fraction form
    52,021,071/78,031,383.72 = 13,159,890.84/x
  3. Step 3: Cross multiply
    52,021,071x = 78,031,383.72 × 13,159,890.84
  4. Step 4: Simplify right side
    52,021,071x = 1,026,884,491,849,353.12
  5. Step 5: Solve for x
    x = 1,026,884,491,849,353.12/52,021,071
  6. Step 6: Final answer
    x = 19,739,779.90

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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.