Home / 12,312,042.40-18,447,068.40-10,506,455.20

Finding the Fourth Proportional to 12,312,042.40, 18,447,068.40 and 10,506,455.20

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Solution

The fourth proportional to 12,312,042.40, 18,447,068.40 and 10,506,455.20 is: 15,741,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,042.40 : 18,447,068.40 = 10,506,455.20 : x
  2. Step 2: Convert to fraction form
    12,312,042.40/18,447,068.40 = 10,506,455.20/x
  3. Step 3: Cross multiply
    12,312,042.40x = 18,447,068.40 × 10,506,455.20
  4. Step 4: Simplify right side
    12,312,042.40x = 193,813,297,715,935.66
  5. Step 5: Solve for x
    x = 193,813,297,715,935.66/12,312,042.40
  6. Step 6: Final answer
    x = 15,741,766.59

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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.