Home / 11,868,413-16,378,410-6,435,909.32

Finding the Fourth Proportional to 11,868,413, 16,378,410 and 6,435,909.32

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Solution

The fourth proportional to 11,868,413, 16,378,410 and 6,435,909.32 is: 8,881,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868,413 : 16,378,410 = 6,435,909.32 : x
  2. Step 2: Convert to fraction form
    11,868,413/16,378,410 = 6,435,909.32/x
  3. Step 3: Cross multiply
    11,868,413x = 16,378,410 × 6,435,909.32
  4. Step 4: Simplify right side
    11,868,413x = 105,409,961,565,781.20
  5. Step 5: Solve for x
    x = 105,409,961,565,781.20/11,868,413
  6. Step 6: Final answer
    x = 8,881,554.89

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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.