Home / 21,009,686.40-31,497,033.60-8,888,457.60

Finding the Fourth Proportional to 21,009,686.40, 31,497,033.60 and 8,888,457.60

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Solution

The fourth proportional to 21,009,686.40, 31,497,033.60 and 8,888,457.60 is: 13,325,284.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,686.40 : 31,497,033.60 = 8,888,457.60 : x
  2. Step 2: Convert to fraction form
    21,009,686.40/31,497,033.60 = 8,888,457.60/x
  3. Step 3: Cross multiply
    21,009,686.40x = 31,497,033.60 × 8,888,457.60
  4. Step 4: Simplify right side
    21,009,686.40x = 279,960,047,679,375.38
  5. Step 5: Solve for x
    x = 279,960,047,679,375.38/21,009,686.40
  6. Step 6: Final answer
    x = 13,325,284.46

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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.