Home / 205,636,912.12-308,506,420.96-102,054,730.96

Finding the Fourth Proportional to 205,636,912.12, 308,506,420.96 and 102,054,730.96

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Solution

The fourth proportional to 205,636,912.12, 308,506,420.96 and 102,054,730.96 is: 153,107,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,636,912.12 : 308,506,420.96 = 102,054,730.96 : x
  2. Step 2: Convert to fraction form
    205,636,912.12/308,506,420.96 = 102,054,730.96/x
  3. Step 3: Cross multiply
    205,636,912.12x = 308,506,420.96 × 102,054,730.96
  4. Step 4: Simplify right side
    205,636,912.12x = 31,484,539,788,452,496
  5. Step 5: Solve for x
    x = 31,484,539,788,452,496/205,636,912.12
  6. Step 6: Final answer
    x = 153,107,433.22

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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.