Home / 79,736,156.80-119,604,235.20-78,980,329.60

Finding the Fourth Proportional to 79,736,156.80, 119,604,235.20 and 78,980,329.60

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Solution

The fourth proportional to 79,736,156.80, 119,604,235.20 and 78,980,329.60 is: 118,470,494.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,736,156.80 : 119,604,235.20 = 78,980,329.60 : x
  2. Step 2: Convert to fraction form
    79,736,156.80/119,604,235.20 = 78,980,329.60/x
  3. Step 3: Cross multiply
    79,736,156.80x = 119,604,235.20 × 78,980,329.60
  4. Step 4: Simplify right side
    79,736,156.80x = 9,446,381,917,651,922
  5. Step 5: Solve for x
    x = 9,446,381,917,651,922/79,736,156.80
  6. Step 6: Final answer
    x = 118,470,494.40

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1.5x scale

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.