Home / 12,983,000.95-17,914,980.39-7,478,166.12

Finding the Fourth Proportional to 12,983,000.95, 17,914,980.39 and 7,478,166.12

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Solution

The fourth proportional to 12,983,000.95, 17,914,980.39 and 7,478,166.12 is: 10,318,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983,000.95 : 17,914,980.39 = 7,478,166.12 : x
  2. Step 2: Convert to fraction form
    12,983,000.95/17,914,980.39 = 7,478,166.12/x
  3. Step 3: Cross multiply
    12,983,000.95x = 17,914,980.39 × 7,478,166.12
  4. Step 4: Simplify right side
    12,983,000.95x = 133,971,199,392,962.39
  5. Step 5: Solve for x
    x = 133,971,199,392,962.39/12,983,000.95
  6. Step 6: Final answer
    x = 10,318,970.16

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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.