Home / 10,379,920.40-15,569,880.60-9,792,054.80

Finding the Fourth Proportional to 10,379,920.40, 15,569,880.60 and 9,792,054.80

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Solution

The fourth proportional to 10,379,920.40, 15,569,880.60 and 9,792,054.80 is: 14,688,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379,920.40 : 15,569,880.60 = 9,792,054.80 : x
  2. Step 2: Convert to fraction form
    10,379,920.40/15,569,880.60 = 9,792,054.80/x
  3. Step 3: Cross multiply
    10,379,920.40x = 15,569,880.60 × 9,792,054.80
  4. Step 4: Simplify right side
    10,379,920.40x = 152,461,124,064,656.88
  5. Step 5: Solve for x
    x = 152,461,124,064,656.88/10,379,920.40
  6. Step 6: Final answer
    x = 14,688,082.20

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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.