Home / 21,308,014.40-31,962,021.60-7,124,590.40

Finding the Fourth Proportional to 21,308,014.40, 31,962,021.60 and 7,124,590.40

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Solution

The fourth proportional to 21,308,014.40, 31,962,021.60 and 7,124,590.40 is: 10,686,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,014.40 : 31,962,021.60 = 7,124,590.40 : x
  2. Step 2: Convert to fraction form
    21,308,014.40/31,962,021.60 = 7,124,590.40/x
  3. Step 3: Cross multiply
    21,308,014.40x = 31,962,021.60 × 7,124,590.40
  4. Step 4: Simplify right side
    21,308,014.40x = 227,716,312,255,952.66
  5. Step 5: Solve for x
    x = 227,716,312,255,952.66/21,308,014.40
  6. Step 6: Final answer
    x = 10,686,885.60

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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.