Home / 15,712,811,878.05-21,712,044,381.81-11,188,836,809

Finding the Fourth Proportional to 15,712,811,878.05, 21,712,044,381.81 and 11,188,836,809

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Solution

The fourth proportional to 15,712,811,878.05, 21,712,044,381.81 and 11,188,836,809 is: 15,460,792,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712,811,878.05 : 21,712,044,381.81 = 11,188,836,809 : x
  2. Step 2: Convert to fraction form
    15,712,811,878.05/21,712,044,381.81 = 11,188,836,809/x
  3. Step 3: Cross multiply
    15,712,811,878.05x = 21,712,044,381.81 × 11,188,836,809
  4. Step 4: Simplify right side
    15,712,811,878.05x = 242,932,521,377,781,448,704
  5. Step 5: Solve for x
    x = 242,932,521,377,781,448,704/15,712,811,878.05
  6. Step 6: Final answer
    x = 15,460,792,330.69

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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.