Home / 130,347,736.40-195,647,575.80-79,329,400.40

Finding the Fourth Proportional to 130,347,736.40, 195,647,575.80 and 79,329,400.40

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Solution

The fourth proportional to 130,347,736.40, 195,647,575.80 and 79,329,400.40 is: 119,070,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,347,736.40 : 195,647,575.80 = 79,329,400.40 : x
  2. Step 2: Convert to fraction form
    130,347,736.40/195,647,575.80 = 79,329,400.40/x
  3. Step 3: Cross multiply
    130,347,736.40x = 195,647,575.80 × 79,329,400.40
  4. Step 4: Simplify right side
    130,347,736.40x = 15,520,604,877,927,552
  5. Step 5: Solve for x
    x = 15,520,604,877,927,552/130,347,736.40
  6. Step 6: Final answer
    x = 119,070,766.45

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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.