Home / 21,062,579,278.95-31,604,731,076.76-9,871,590,381.30

Finding the Fourth Proportional to 21,062,579,278.95, 31,604,731,076.76 and 9,871,590,381.30

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Solution

The fourth proportional to 21,062,579,278.95, 31,604,731,076.76 and 9,871,590,381.30 is: 14,812,476,438.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,579,278.95 : 31,604,731,076.76 = 9,871,590,381.30 : x
  2. Step 2: Convert to fraction form
    21,062,579,278.95/31,604,731,076.76 = 9,871,590,381.30/x
  3. Step 3: Cross multiply
    21,062,579,278.95x = 31,604,731,076.76 × 9,871,590,381.30
  4. Step 4: Simplify right side
    21,062,579,278.95x = 311,988,959,300,917,198,848
  5. Step 5: Solve for x
    x = 311,988,959,300,917,198,848/21,062,579,278.95
  6. Step 6: Final answer
    x = 14,812,476,438.38

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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.