Home / 366,438,828-505,686,632.40-209,808,337.44

Finding the Fourth Proportional to 366,438,828, 505,686,632.40 and 209,808,337.44

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Solution

The fourth proportional to 366,438,828, 505,686,632.40 and 209,808,337.44 is: 289,536,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,438,828 : 505,686,632.40 = 209,808,337.44 : x
  2. Step 2: Convert to fraction form
    366,438,828/505,686,632.40 = 209,808,337.44/x
  3. Step 3: Cross multiply
    366,438,828x = 505,686,632.40 × 209,808,337.44
  4. Step 4: Simplify right side
    366,438,828x = 106,097,271,609,476,432
  5. Step 5: Solve for x
    x = 106,097,271,609,476,432/366,438,828
  6. Step 6: Final answer
    x = 289,536,106.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.