Home / 219,980,359.80-330,222,482.10-129,155,124.60

Finding the Fourth Proportional to 219,980,359.80, 330,222,482.10 and 129,155,124.60

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Solution

The fourth proportional to 219,980,359.80, 330,222,482.10 and 129,155,124.60 is: 193,880,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,980,359.80 : 330,222,482.10 = 129,155,124.60 : x
  2. Step 2: Convert to fraction form
    219,980,359.80/330,222,482.10 = 129,155,124.60/x
  3. Step 3: Cross multiply
    219,980,359.80x = 330,222,482.10 × 129,155,124.60
  4. Step 4: Simplify right side
    219,980,359.80x = 42,649,925,821,346,768
  5. Step 5: Solve for x
    x = 42,649,925,821,346,768/219,980,359.80
  6. Step 6: Final answer
    x = 193,880,607.61

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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.