Home / 20,520,075.70-30,764,561.55-10,429,938.10

Finding the Fourth Proportional to 20,520,075.70, 30,764,561.55 and 10,429,938.10

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Solution

The fourth proportional to 20,520,075.70, 30,764,561.55 and 10,429,938.10 is: 15,637,002.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520,075.70 : 30,764,561.55 = 10,429,938.10 : x
  2. Step 2: Convert to fraction form
    20,520,075.70/30,764,561.55 = 10,429,938.10/x
  3. Step 3: Cross multiply
    20,520,075.70x = 30,764,561.55 × 10,429,938.10
  4. Step 4: Simplify right side
    20,520,075.70x = 320,872,472,640,140.06
  5. Step 5: Solve for x
    x = 320,872,472,640,140.06/20,520,075.70
  6. Step 6: Final answer
    x = 15,637,002.38

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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.