Home / 15,426,717.17-21,288,408.77-8,457,156.41

Finding the Fourth Proportional to 15,426,717.17, 21,288,408.77 and 8,457,156.41

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Solution

The fourth proportional to 15,426,717.17, 21,288,408.77 and 8,457,156.41 is: 11,670,623.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426,717.17 : 21,288,408.77 = 8,457,156.41 : x
  2. Step 2: Convert to fraction form
    15,426,717.17/21,288,408.77 = 8,457,156.41/x
  3. Step 3: Cross multiply
    15,426,717.17x = 21,288,408.77 × 8,457,156.41
  4. Step 4: Simplify right side
    15,426,717.17x = 180,039,402,602,606.56
  5. Step 5: Solve for x
    x = 180,039,402,602,606.56/15,426,717.17
  6. Step 6: Final answer
    x = 11,670,623.16

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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.