Home / 10,938,700.70-16,408,051.05-7,747,430.30

Finding the Fourth Proportional to 10,938,700.70, 16,408,051.05 and 7,747,430.30

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Solution

The fourth proportional to 10,938,700.70, 16,408,051.05 and 7,747,430.30 is: 11,621,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938,700.70 : 16,408,051.05 = 7,747,430.30 : x
  2. Step 2: Convert to fraction form
    10,938,700.70/16,408,051.05 = 7,747,430.30/x
  3. Step 3: Cross multiply
    10,938,700.70x = 16,408,051.05 × 7,747,430.30
  4. Step 4: Simplify right side
    10,938,700.70x = 127,120,231,868,716.81
  5. Step 5: Solve for x
    x = 127,120,231,868,716.81/10,938,700.70
  6. Step 6: Final answer
    x = 11,621,145.45

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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.