Home / 119,570,069.20-179,355,103.80-78,755,400.40

Finding the Fourth Proportional to 119,570,069.20, 179,355,103.80 and 78,755,400.40

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Solution

The fourth proportional to 119,570,069.20, 179,355,103.80 and 78,755,400.40 is: 118,133,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,570,069.20 : 179,355,103.80 = 78,755,400.40 : x
  2. Step 2: Convert to fraction form
    119,570,069.20/179,355,103.80 = 78,755,400.40/x
  3. Step 3: Cross multiply
    119,570,069.20x = 179,355,103.80 × 78,755,400.40
  4. Step 4: Simplify right side
    119,570,069.20x = 14,125,183,013,552,564
  5. Step 5: Solve for x
    x = 14,125,183,013,552,564/119,570,069.20
  6. Step 6: Final answer
    x = 118,133,100.60

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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.