Home / 21,009,615.90-31,496,927.85-8,888,387.10

Finding the Fourth Proportional to 21,009,615.90, 31,496,927.85 and 8,888,387.10

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Solution

The fourth proportional to 21,009,615.90, 31,496,927.85 and 8,888,387.10 is: 13,325,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,615.90 : 31,496,927.85 = 8,888,387.10 : x
  2. Step 2: Convert to fraction form
    21,009,615.90/31,496,927.85 = 8,888,387.10/x
  3. Step 3: Cross multiply
    21,009,615.90x = 31,496,927.85 × 8,888,387.10
  4. Step 4: Simplify right side
    21,009,615.90x = 279,956,887,191,570.75
  5. Step 5: Solve for x
    x = 279,956,887,191,570.75/21,009,615.90
  6. Step 6: Final answer
    x = 13,325,178.74

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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.