Home / 18,837,486.40-28,258,303.20-6,872,814.40

Finding the Fourth Proportional to 18,837,486.40, 28,258,303.20 and 6,872,814.40

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Solution

The fourth proportional to 18,837,486.40, 28,258,303.20 and 6,872,814.40 is: 10,309,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837,486.40 : 28,258,303.20 = 6,872,814.40 : x
  2. Step 2: Convert to fraction form
    18,837,486.40/28,258,303.20 = 6,872,814.40/x
  3. Step 3: Cross multiply
    18,837,486.40x = 28,258,303.20 × 6,872,814.40
  4. Step 4: Simplify right side
    18,837,486.40x = 194,214,073,152,526.09
  5. Step 5: Solve for x
    x = 194,214,073,152,526.09/18,837,486.40
  6. Step 6: Final answer
    x = 10,309,978.15

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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.