Home / 79,154,906.40-118,732,359.60-28,030,282.20

Finding the Fourth Proportional to 79,154,906.40, 118,732,359.60 and 28,030,282.20

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Solution

The fourth proportional to 79,154,906.40, 118,732,359.60 and 28,030,282.20 is: 42,045,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,154,906.40 : 118,732,359.60 = 28,030,282.20 : x
  2. Step 2: Convert to fraction form
    79,154,906.40/118,732,359.60 = 28,030,282.20/x
  3. Step 3: Cross multiply
    79,154,906.40x = 118,732,359.60 × 28,030,282.20
  4. Step 4: Simplify right side
    79,154,906.40x = 3,328,101,545,859,879
  5. Step 5: Solve for x
    x = 3,328,101,545,859,879/79,154,906.40
  6. Step 6: Final answer
    x = 42,045,423.30

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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.