Home / 20,769,368.58-31,024,535.87-15,388,528.46

Finding the Fourth Proportional to 20,769,368.58, 31,024,535.87 and 15,388,528.46

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Solution

The fourth proportional to 20,769,368.58, 31,024,535.87 and 15,388,528.46 is: 22,986,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,368.58 : 31,024,535.87 = 15,388,528.46 : x
  2. Step 2: Convert to fraction form
    20,769,368.58/31,024,535.87 = 15,388,528.46/x
  3. Step 3: Cross multiply
    20,769,368.58x = 31,024,535.87 × 15,388,528.46
  4. Step 4: Simplify right side
    20,769,368.58x = 477,421,953,077,134.50
  5. Step 5: Solve for x
    x = 477,421,953,077,134.50/20,769,368.58
  6. Step 6: Final answer
    x = 22,986,830.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.