Home / 21,044,933.56-29,033,978.86-12,781,878.94

Finding the Fourth Proportional to 21,044,933.56, 29,033,978.86 and 12,781,878.94

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Solution

The fourth proportional to 21,044,933.56, 29,033,978.86 and 12,781,878.94 is: 17,634,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044,933.56 : 29,033,978.86 = 12,781,878.94 : x
  2. Step 2: Convert to fraction form
    21,044,933.56/29,033,978.86 = 12,781,878.94/x
  3. Step 3: Cross multiply
    21,044,933.56x = 29,033,978.86 × 12,781,878.94
  4. Step 4: Simplify right side
    21,044,933.56x = 371,108,802,935,039.19
  5. Step 5: Solve for x
    x = 371,108,802,935,039.19/21,044,933.56
  6. Step 6: Final answer
    x = 17,634,116.16

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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.