Home / 14,020,072.70-21,030,109.05-6,461,800.70

Finding the Fourth Proportional to 14,020,072.70, 21,030,109.05 and 6,461,800.70

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Solution

The fourth proportional to 14,020,072.70, 21,030,109.05 and 6,461,800.70 is: 9,692,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020,072.70 : 21,030,109.05 = 6,461,800.70 : x
  2. Step 2: Convert to fraction form
    14,020,072.70/21,030,109.05 = 6,461,800.70/x
  3. Step 3: Cross multiply
    14,020,072.70x = 21,030,109.05 × 6,461,800.70
  4. Step 4: Simplify right side
    14,020,072.70x = 135,892,373,380,366.34
  5. Step 5: Solve for x
    x = 135,892,373,380,366.34/14,020,072.70
  6. Step 6: Final answer
    x = 9,692,701.05

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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.