Home / 415,883,146.53-623,920,391.48-139,571,027.40

Finding the Fourth Proportional to 415,883,146.53, 623,920,391.48 and 139,571,027.40

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Solution

The fourth proportional to 415,883,146.53, 623,920,391.48 and 139,571,027.40 is: 209,388,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,883,146.53 : 623,920,391.48 = 139,571,027.40 : x
  2. Step 2: Convert to fraction form
    415,883,146.53/623,920,391.48 = 139,571,027.40/x
  3. Step 3: Cross multiply
    415,883,146.53x = 623,920,391.48 × 139,571,027.40
  4. Step 4: Simplify right side
    415,883,146.53x = 87,081,210,054,673,808
  5. Step 5: Solve for x
    x = 87,081,210,054,673,808/415,883,146.53
  6. Step 6: Final answer
    x = 209,388,648.67

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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.