Home / 12,591,936-17,376,871.68-7,159,428

Finding the Fourth Proportional to 12,591,936, 17,376,871.68 and 7,159,428

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Solution

The fourth proportional to 12,591,936, 17,376,871.68 and 7,159,428 is: 9,880,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,936 : 17,376,871.68 = 7,159,428 : x
  2. Step 2: Convert to fraction form
    12,591,936/17,376,871.68 = 7,159,428/x
  3. Step 3: Cross multiply
    12,591,936x = 17,376,871.68 × 7,159,428
  4. Step 4: Simplify right side
    12,591,936x = 124,408,461,658,199.03
  5. Step 5: Solve for x
    x = 124,408,461,658,199.03/12,591,936
  6. Step 6: Final answer
    x = 9,880,010.64

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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.