Home / 290,816,004.80-436,224,007.20-86,375,633.60

Finding the Fourth Proportional to 290,816,004.80, 436,224,007.20 and 86,375,633.60

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Solution

The fourth proportional to 290,816,004.80, 436,224,007.20 and 86,375,633.60 is: 129,563,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,816,004.80 : 436,224,007.20 = 86,375,633.60 : x
  2. Step 2: Convert to fraction form
    290,816,004.80/436,224,007.20 = 86,375,633.60/x
  3. Step 3: Cross multiply
    290,816,004.80x = 436,224,007.20 × 86,375,633.60
  4. Step 4: Simplify right side
    290,816,004.80x = 37,679,125,013,430,960
  5. Step 5: Solve for x
    x = 37,679,125,013,430,960/290,816,004.80
  6. Step 6: Final answer
    x = 129,563,450.40

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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.