Home / 19,909,422.40-29,864,133.60-6,447,611.20

Finding the Fourth Proportional to 19,909,422.40, 29,864,133.60 and 6,447,611.20

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Solution

The fourth proportional to 19,909,422.40, 29,864,133.60 and 6,447,611.20 is: 9,671,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909,422.40 : 29,864,133.60 = 6,447,611.20 : x
  2. Step 2: Convert to fraction form
    19,909,422.40/29,864,133.60 = 6,447,611.20/x
  3. Step 3: Cross multiply
    19,909,422.40x = 29,864,133.60 × 6,447,611.20
  4. Step 4: Simplify right side
    19,909,422.40x = 192,552,322,277,656.34
  5. Step 5: Solve for x
    x = 192,552,322,277,656.34/19,909,422.40
  6. Step 6: Final answer
    x = 9,671,416.80

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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.