Home / 12,588,913,089.79-17,380,540,371.20-8,013,758,977.93

Finding the Fourth Proportional to 12,588,913,089.79, 17,380,540,371.20 and 8,013,758,977.93

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Solution

The fourth proportional to 12,588,913,089.79, 17,380,540,371.20 and 8,013,758,977.93 is: 11,063,978,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588,913,089.79 : 17,380,540,371.20 = 8,013,758,977.93 : x
  2. Step 2: Convert to fraction form
    12,588,913,089.79/17,380,540,371.20 = 8,013,758,977.93/x
  3. Step 3: Cross multiply
    12,588,913,089.79x = 17,380,540,371.20 × 8,013,758,977.93
  4. Step 4: Simplify right side
    12,588,913,089.79x = 139,283,461,440,938,754,048
  5. Step 5: Solve for x
    x = 139,283,461,440,938,754,048/12,588,913,089.79
  6. Step 6: Final answer
    x = 11,063,978,315.48

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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.