Home / 12,103,909.80-18,176,859.90-6,435,205.80

Finding the Fourth Proportional to 12,103,909.80, 18,176,859.90 and 6,435,205.80

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Solution

The fourth proportional to 12,103,909.80, 18,176,859.90 and 6,435,205.80 is: 9,663,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103,909.80 : 18,176,859.90 = 6,435,205.80 : x
  2. Step 2: Convert to fraction form
    12,103,909.80/18,176,859.90 = 6,435,205.80/x
  3. Step 3: Cross multiply
    12,103,909.80x = 18,176,859.90 × 6,435,205.80
  4. Step 4: Simplify right side
    12,103,909.80x = 116,971,834,254,267.41
  5. Step 5: Solve for x
    x = 116,971,834,254,267.41/12,103,909.80
  6. Step 6: Final answer
    x = 9,663,971.08

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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.