Home / 20,718,742.60-31,080,950.16-7,068,223.98

Finding the Fourth Proportional to 20,718,742.60, 31,080,950.16 and 7,068,223.98

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Solution

The fourth proportional to 20,718,742.60, 31,080,950.16 and 7,068,223.98 is: 10,603,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,742.60 : 31,080,950.16 = 7,068,223.98 : x
  2. Step 2: Convert to fraction form
    20,718,742.60/31,080,950.16 = 7,068,223.98/x
  3. Step 3: Cross multiply
    20,718,742.60x = 31,080,950.16 × 7,068,223.98
  4. Step 4: Simplify right side
    20,718,742.60x = 219,687,117,242,096.84
  5. Step 5: Solve for x
    x = 219,687,117,242,096.84/20,718,742.60
  6. Step 6: Final answer
    x = 10,603,303.56

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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.