Home / 12,423,877.86-18,611,572.83-9,678,570.85

Finding the Fourth Proportional to 12,423,877.86, 18,611,572.83 and 9,678,570.85

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Solution

The fourth proportional to 12,423,877.86, 18,611,572.83 and 9,678,570.85 is: 14,498,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423,877.86 : 18,611,572.83 = 9,678,570.85 : x
  2. Step 2: Convert to fraction form
    12,423,877.86/18,611,572.83 = 9,678,570.85/x
  3. Step 3: Cross multiply
    12,423,877.86x = 18,611,572.83 × 9,678,570.85
  4. Step 4: Simplify right side
    12,423,877.86x = 180,133,426,254,855.69
  5. Step 5: Solve for x
    x = 180,133,426,254,855.69/12,423,877.86
  6. Step 6: Final answer
    x = 14,498,969.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.