Home / 78,457,589.80-117,686,384.70-24,604,815.40

Finding the Fourth Proportional to 78,457,589.80, 117,686,384.70 and 24,604,815.40

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Solution

The fourth proportional to 78,457,589.80, 117,686,384.70 and 24,604,815.40 is: 36,907,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457,589.80 : 117,686,384.70 = 24,604,815.40 : x
  2. Step 2: Convert to fraction form
    78,457,589.80/117,686,384.70 = 24,604,815.40/x
  3. Step 3: Cross multiply
    78,457,589.80x = 117,686,384.70 × 24,604,815.40
  4. Step 4: Simplify right side
    78,457,589.80x = 2,895,651,770,636,884.50
  5. Step 5: Solve for x
    x = 2,895,651,770,636,884.50/78,457,589.80
  6. Step 6: Final answer
    x = 36,907,223.10

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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.