Home / 80,547,809.40-120,821,714.10-49,936,807.80

Finding the Fourth Proportional to 80,547,809.40, 120,821,714.10 and 49,936,807.80

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Solution

The fourth proportional to 80,547,809.40, 120,821,714.10 and 49,936,807.80 is: 74,905,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547,809.40 : 120,821,714.10 = 49,936,807.80 : x
  2. Step 2: Convert to fraction form
    80,547,809.40/120,821,714.10 = 49,936,807.80/x
  3. Step 3: Cross multiply
    80,547,809.40x = 120,821,714.10 × 49,936,807.80
  4. Step 4: Simplify right side
    80,547,809.40x = 6,033,450,715,078,249
  5. Step 5: Solve for x
    x = 6,033,450,715,078,249/80,547,809.40
  6. Step 6: Final answer
    x = 74,905,211.70

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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.