Home / 15,332,457.60-21,159,532.80-8,456,918.40

Finding the Fourth Proportional to 15,332,457.60, 21,159,532.80 and 8,456,918.40

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Solution

The fourth proportional to 15,332,457.60, 21,159,532.80 and 8,456,918.40 is: 11,670,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332,457.60 : 21,159,532.80 = 8,456,918.40 : x
  2. Step 2: Convert to fraction form
    15,332,457.60/21,159,532.80 = 8,456,918.40/x
  3. Step 3: Cross multiply
    15,332,457.60x = 21,159,532.80 × 8,456,918.40
  4. Step 4: Simplify right side
    15,332,457.60x = 178,944,442,271,723.53
  5. Step 5: Solve for x
    x = 178,944,442,271,723.53/15,332,457.60
  6. Step 6: Final answer
    x = 11,670,956.28

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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.