Home / 8,864,421.90-12,230,818.74-5,379,683.45

Finding the Fourth Proportional to 8,864,421.90, 12,230,818.74 and 5,379,683.45

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Solution

The fourth proportional to 8,864,421.90, 12,230,818.74 and 5,379,683.45 is: 7,422,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864,421.90 : 12,230,818.74 = 5,379,683.45 : x
  2. Step 2: Convert to fraction form
    8,864,421.90/12,230,818.74 = 5,379,683.45/x
  3. Step 3: Cross multiply
    8,864,421.90x = 12,230,818.74 × 5,379,683.45
  4. Step 4: Simplify right side
    8,864,421.90x = 65,797,933,094,373.77
  5. Step 5: Solve for x
    x = 65,797,933,094,373.77/8,864,421.90
  6. Step 6: Final answer
    x = 7,422,698.72

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1.5x scale

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.