Home / 113,570,405.20-170,355,607.80-72,755,736.40

Finding the Fourth Proportional to 113,570,405.20, 170,355,607.80 and 72,755,736.40

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Solution

The fourth proportional to 113,570,405.20, 170,355,607.80 and 72,755,736.40 is: 109,133,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,570,405.20 : 170,355,607.80 = 72,755,736.40 : x
  2. Step 2: Convert to fraction form
    113,570,405.20/170,355,607.80 = 72,755,736.40/x
  3. Step 3: Cross multiply
    113,570,405.20x = 170,355,607.80 × 72,755,736.40
  4. Step 4: Simplify right side
    113,570,405.20x = 12,394,347,695,358,586
  5. Step 5: Solve for x
    x = 12,394,347,695,358,586/113,570,405.20
  6. Step 6: Final answer
    x = 109,133,604.60

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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.