Home / 18,696,084.84-28,047,763.16-7,180,709.72

Finding the Fourth Proportional to 18,696,084.84, 28,047,763.16 and 7,180,709.72

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Solution

The fourth proportional to 18,696,084.84, 28,047,763.16 and 7,180,709.72 is: 10,772,461.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,084.84 : 28,047,763.16 = 7,180,709.72 : x
  2. Step 2: Convert to fraction form
    18,696,084.84/28,047,763.16 = 7,180,709.72/x
  3. Step 3: Cross multiply
    18,696,084.84x = 28,047,763.16 × 7,180,709.72
  4. Step 4: Simplify right side
    18,696,084.84x = 201,402,845,371,127.56
  5. Step 5: Solve for x
    x = 201,402,845,371,127.56/18,696,084.84
  6. Step 6: Final answer
    x = 10,772,461.03

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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.