Home / 66,489,063.40-99,742,926.30-21,046,119.40

Finding the Fourth Proportional to 66,489,063.40, 99,742,926.30 and 21,046,119.40

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Solution

The fourth proportional to 66,489,063.40, 99,742,926.30 and 21,046,119.40 is: 31,572,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,489,063.40 : 99,742,926.30 = 21,046,119.40 : x
  2. Step 2: Convert to fraction form
    66,489,063.40/99,742,926.30 = 21,046,119.40/x
  3. Step 3: Cross multiply
    66,489,063.40x = 99,742,926.30 × 21,046,119.40
  4. Step 4: Simplify right side
    66,489,063.40x = 2,099,201,536,215,200
  5. Step 5: Solve for x
    x = 2,099,201,536,215,200/66,489,063.40
  6. Step 6: Final answer
    x = 31,572,132.75

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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.