Home / 291,815,890.80-437,844,412.20-127,968,866.16

Finding the Fourth Proportional to 291,815,890.80, 437,844,412.20 and 127,968,866.16

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Solution

The fourth proportional to 291,815,890.80, 437,844,412.20 and 127,968,866.16 is: 192,006,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,815,890.80 : 437,844,412.20 = 127,968,866.16 : x
  2. Step 2: Convert to fraction form
    291,815,890.80/437,844,412.20 = 127,968,866.16/x
  3. Step 3: Cross multiply
    291,815,890.80x = 437,844,412.20 × 127,968,866.16
  4. Step 4: Simplify right side
    291,815,890.80x = 56,030,452,983,725,672
  5. Step 5: Solve for x
    x = 56,030,452,983,725,672/291,815,890.80
  6. Step 6: Final answer
    x = 192,006,174.96

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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.