Home / 7,902,312-10,905,193.80-4,280,640

Finding the Fourth Proportional to 7,902,312, 10,905,193.80 and 4,280,640

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Solution

The fourth proportional to 7,902,312, 10,905,193.80 and 4,280,640 is: 5,907,284.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902,312 : 10,905,193.80 = 4,280,640 : x
  2. Step 2: Convert to fraction form
    7,902,312/10,905,193.80 = 4,280,640/x
  3. Step 3: Cross multiply
    7,902,312x = 10,905,193.80 × 4,280,640
  4. Step 4: Simplify right side
    7,902,312x = 46,681,208,788,032
  5. Step 5: Solve for x
    x = 46,681,208,788,032/7,902,312
  6. Step 6: Final answer
    x = 5,907,284.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.