Home / 5,254,378.40-7,881,900.57-2,221,178.96

Finding the Fourth Proportional to 5,254,378.40, 7,881,900.57 and 2,221,178.96

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Solution

The fourth proportional to 5,254,378.40, 7,881,900.57 and 2,221,178.96 is: 3,331,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254,378.40 : 7,881,900.57 = 2,221,178.96 : x
  2. Step 2: Convert to fraction form
    5,254,378.40/7,881,900.57 = 2,221,178.96/x
  3. Step 3: Cross multiply
    5,254,378.40x = 7,881,900.57 × 2,221,178.96
  4. Step 4: Simplify right side
    5,254,378.40x = 17,507,111,671,486.51
  5. Step 5: Solve for x
    x = 17,507,111,671,486.51/5,254,378.40
  6. Step 6: Final answer
    x = 3,331,909.19

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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.