Home / 30,528,046.65-45,792,069.98-28,638,478.65

Finding the Fourth Proportional to 30,528,046.65, 45,792,069.98 and 28,638,478.65

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Solution

The fourth proportional to 30,528,046.65, 45,792,069.98 and 28,638,478.65 is: 42,957,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,046.65 : 45,792,069.98 = 28,638,478.65 : x
  2. Step 2: Convert to fraction form
    30,528,046.65/45,792,069.98 = 28,638,478.65/x
  3. Step 3: Cross multiply
    30,528,046.65x = 45,792,069.98 × 28,638,478.65
  4. Step 4: Simplify right side
    30,528,046.65x = 1,311,415,218,318,343.50
  5. Step 5: Solve for x
    x = 1,311,415,218,318,343.50/30,528,046.65
  6. Step 6: Final answer
    x = 42,957,717.98

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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.