Home / 312,872,157.20-469,420,210.20-131,175,030.80

Finding the Fourth Proportional to 312,872,157.20, 469,420,210.20 and 131,175,030.80

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Solution

The fourth proportional to 312,872,157.20, 469,420,210.20 and 131,175,030.80 is: 196,809,492.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,872,157.20 : 469,420,210.20 = 131,175,030.80 : x
  2. Step 2: Convert to fraction form
    312,872,157.20/469,420,210.20 = 131,175,030.80/x
  3. Step 3: Cross multiply
    312,872,157.20x = 469,420,210.20 × 131,175,030.80
  4. Step 4: Simplify right side
    312,872,157.20x = 61,576,210,531,127,472
  5. Step 5: Solve for x
    x = 61,576,210,531,127,472/312,872,157.20
  6. Step 6: Final answer
    x = 196,809,492.68

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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.