Home / 21,062,579,277.47-31,604,731,074.53-9,871,590,379.82

Finding the Fourth Proportional to 21,062,579,277.47, 31,604,731,074.53 and 9,871,590,379.82

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Solution

The fourth proportional to 21,062,579,277.47, 31,604,731,074.53 and 9,871,590,379.82 is: 14,812,476,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,579,277.47 : 31,604,731,074.53 = 9,871,590,379.82 : x
  2. Step 2: Convert to fraction form
    21,062,579,277.47/31,604,731,074.53 = 9,871,590,379.82/x
  3. Step 3: Cross multiply
    21,062,579,277.47x = 31,604,731,074.53 × 9,871,590,379.82
  4. Step 4: Simplify right side
    21,062,579,277.47x = 311,988,959,231,921,225,728
  5. Step 5: Solve for x
    x = 311,988,959,231,921,225,728/21,062,579,277.47
  6. Step 6: Final answer
    x = 14,812,476,436.15

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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.