Home / 21,004,494.80-31,506,742.20-17,869,211.60

Finding the Fourth Proportional to 21,004,494.80, 31,506,742.20 and 17,869,211.60

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Solution

The fourth proportional to 21,004,494.80, 31,506,742.20 and 17,869,211.60 is: 26,803,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,494.80 : 31,506,742.20 = 17,869,211.60 : x
  2. Step 2: Convert to fraction form
    21,004,494.80/31,506,742.20 = 17,869,211.60/x
  3. Step 3: Cross multiply
    21,004,494.80x = 31,506,742.20 × 17,869,211.60
  4. Step 4: Simplify right side
    21,004,494.80x = 563,000,643,198,449.50
  5. Step 5: Solve for x
    x = 563,000,643,198,449.50/21,004,494.80
  6. Step 6: Final answer
    x = 26,803,817.40

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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.