Home / 79,105,396.80-118,658,095.20-56,147,145.60

Finding the Fourth Proportional to 79,105,396.80, 118,658,095.20 and 56,147,145.60

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Solution

The fourth proportional to 79,105,396.80, 118,658,095.20 and 56,147,145.60 is: 84,220,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,105,396.80 : 118,658,095.20 = 56,147,145.60 : x
  2. Step 2: Convert to fraction form
    79,105,396.80/118,658,095.20 = 56,147,145.60/x
  3. Step 3: Cross multiply
    79,105,396.80x = 118,658,095.20 × 56,147,145.60
  4. Step 4: Simplify right side
    79,105,396.80x = 6,662,313,347,813,061
  5. Step 5: Solve for x
    x = 6,662,313,347,813,061/79,105,396.80
  6. Step 6: Final answer
    x = 84,220,718.40

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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.