Home / 289,728,410.10-434,592,615.15-74,317,658.10

Finding the Fourth Proportional to 289,728,410.10, 434,592,615.15 and 74,317,658.10

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Solution

The fourth proportional to 289,728,410.10, 434,592,615.15 and 74,317,658.10 is: 111,476,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,728,410.10 : 434,592,615.15 = 74,317,658.10 : x
  2. Step 2: Convert to fraction form
    289,728,410.10/434,592,615.15 = 74,317,658.10/x
  3. Step 3: Cross multiply
    289,728,410.10x = 434,592,615.15 × 74,317,658.10
  4. Step 4: Simplify right side
    289,728,410.10x = 32,297,905,385,502,576
  5. Step 5: Solve for x
    x = 32,297,905,385,502,576/289,728,410.10
  6. Step 6: Final answer
    x = 111,476,487.15

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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.