Home / 12,450,312.40-18,678,967.80-5,265,288.40

Finding the Fourth Proportional to 12,450,312.40, 18,678,967.80 and 5,265,288.40

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Solution

The fourth proportional to 12,450,312.40, 18,678,967.80 and 5,265,288.40 is: 7,899,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450,312.40 : 18,678,967.80 = 5,265,288.40 : x
  2. Step 2: Convert to fraction form
    12,450,312.40/18,678,967.80 = 5,265,288.40/x
  3. Step 3: Cross multiply
    12,450,312.40x = 18,678,967.80 × 5,265,288.40
  4. Step 4: Simplify right side
    12,450,312.40x = 98,350,152,481,313.53
  5. Step 5: Solve for x
    x = 98,350,152,481,313.53/12,450,312.40
  6. Step 6: Final answer
    x = 7,899,412.43

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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.