Home / 103,876,807.20-155,815,210.80-99,908,714.40

Finding the Fourth Proportional to 103,876,807.20, 155,815,210.80 and 99,908,714.40

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Solution

The fourth proportional to 103,876,807.20, 155,815,210.80 and 99,908,714.40 is: 149,863,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,807.20 : 155,815,210.80 = 99,908,714.40 : x
  2. Step 2: Convert to fraction form
    103,876,807.20/155,815,210.80 = 99,908,714.40/x
  3. Step 3: Cross multiply
    103,876,807.20x = 155,815,210.80 × 99,908,714.40
  4. Step 4: Simplify right side
    103,876,807.20x = 15,567,297,394,992,998
  5. Step 5: Solve for x
    x = 15,567,297,394,992,998/103,876,807.20
  6. Step 6: Final answer
    x = 149,863,071.60

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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.