Home / 129,030,400.80-193,545,601.20-119,176,653.60

Finding the Fourth Proportional to 129,030,400.80, 193,545,601.20 and 119,176,653.60

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Solution

The fourth proportional to 129,030,400.80, 193,545,601.20 and 119,176,653.60 is: 178,764,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,030,400.80 : 193,545,601.20 = 119,176,653.60 : x
  2. Step 2: Convert to fraction form
    129,030,400.80/193,545,601.20 = 119,176,653.60/x
  3. Step 3: Cross multiply
    129,030,400.80x = 193,545,601.20 × 119,176,653.60
  4. Step 4: Simplify right side
    129,030,400.80x = 23,066,117,070,016,140
  5. Step 5: Solve for x
    x = 23,066,117,070,016,140/129,030,400.80
  6. Step 6: Final answer
    x = 178,764,980.40

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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.