Home / 15,346,365.28-21,177,986.16-8,470,849.12

Finding the Fourth Proportional to 15,346,365.28, 21,177,986.16 and 8,470,849.12

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Solution

The fourth proportional to 15,346,365.28, 21,177,986.16 and 8,470,849.12 is: 11,689,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346,365.28 : 21,177,986.16 = 8,470,849.12 : x
  2. Step 2: Convert to fraction form
    15,346,365.28/21,177,986.16 = 8,470,849.12/x
  3. Step 3: Cross multiply
    15,346,365.28x = 21,177,986.16 × 8,470,849.12
  4. Step 4: Simplify right side
    15,346,365.28x = 179,395,525,426,808.16
  5. Step 5: Solve for x
    x = 179,395,525,426,808.16/15,346,365.28
  6. Step 6: Final answer
    x = 11,689,772.93

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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.