Home / 68,205,587.81-102,306,904.55-19,020,128.74

Finding the Fourth Proportional to 68,205,587.81, 102,306,904.55 and 19,020,128.74

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Solution

The fourth proportional to 68,205,587.81, 102,306,904.55 and 19,020,128.74 is: 28,529,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,205,587.81 : 102,306,904.55 = 19,020,128.74 : x
  2. Step 2: Convert to fraction form
    68,205,587.81/102,306,904.55 = 19,020,128.74/x
  3. Step 3: Cross multiply
    68,205,587.81x = 102,306,904.55 × 19,020,128.74
  4. Step 4: Simplify right side
    68,205,587.81x = 1,945,890,495,531,891.50
  5. Step 5: Solve for x
    x = 1,945,890,495,531,891.50/68,205,587.81
  6. Step 6: Final answer
    x = 28,529,781.18

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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.