Home / 15,739,364,189.82-21,720,269,849.67-8,602,773,868.14

Finding the Fourth Proportional to 15,739,364,189.82, 21,720,269,849.67 and 8,602,773,868.14

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Solution

The fourth proportional to 15,739,364,189.82, 21,720,269,849.67 and 8,602,773,868.14 is: 11,871,799,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739,364,189.82 : 21,720,269,849.67 = 8,602,773,868.14 : x
  2. Step 2: Convert to fraction form
    15,739,364,189.82/21,720,269,849.67 = 8,602,773,868.14/x
  3. Step 3: Cross multiply
    15,739,364,189.82x = 21,720,269,849.67 × 8,602,773,868.14
  4. Step 4: Simplify right side
    15,739,364,189.82x = 186,854,569,871,690,170,368
  5. Step 5: Solve for x
    x = 186,854,569,871,690,170,368/15,739,364,189.82
  6. Step 6: Final answer
    x = 11,871,799,115.78

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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.