Home / 21,919,880.76-30,249,494.31-12,130,999.98

Finding the Fourth Proportional to 21,919,880.76, 30,249,494.31 and 12,130,999.98

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Solution

The fourth proportional to 21,919,880.76, 30,249,494.31 and 12,130,999.98 is: 16,740,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,880.76 : 30,249,494.31 = 12,130,999.98 : x
  2. Step 2: Convert to fraction form
    21,919,880.76/30,249,494.31 = 12,130,999.98/x
  3. Step 3: Cross multiply
    21,919,880.76x = 30,249,494.31 × 12,130,999.98
  4. Step 4: Simplify right side
    21,919,880.76x = 366,956,614,869,620.12
  5. Step 5: Solve for x
    x = 366,956,614,869,620.12/21,919,880.76
  6. Step 6: Final answer
    x = 16,740,812.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.