Home / 20,962,393.86-28,929,424.93-12,703,178.34

Finding the Fourth Proportional to 20,962,393.86, 28,929,424.93 and 12,703,178.34

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Solution

The fourth proportional to 20,962,393.86, 28,929,424.93 and 12,703,178.34 is: 17,531,186.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962,393.86 : 28,929,424.93 = 12,703,178.34 : x
  2. Step 2: Convert to fraction form
    20,962,393.86/28,929,424.93 = 12,703,178.34/x
  3. Step 3: Cross multiply
    20,962,393.86x = 28,929,424.93 × 12,703,178.34
  4. Step 4: Simplify right side
    20,962,393.86x = 367,495,644,099,931.94
  5. Step 5: Solve for x
    x = 367,495,644,099,931.94/20,962,393.86
  6. Step 6: Final answer
    x = 17,531,186.87

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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.