Home / 28,117,798.60-42,161,532.16-12,756,706.44

Finding the Fourth Proportional to 28,117,798.60, 42,161,532.16 and 12,756,706.44

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Solution

The fourth proportional to 28,117,798.60, 42,161,532.16 and 12,756,706.44 is: 19,128,179.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117,798.60 : 42,161,532.16 = 12,756,706.44 : x
  2. Step 2: Convert to fraction form
    28,117,798.60/42,161,532.16 = 12,756,706.44/x
  3. Step 3: Cross multiply
    28,117,798.60x = 42,161,532.16 × 12,756,706.44
  4. Step 4: Simplify right side
    28,117,798.60x = 537,842,288,825,739.06
  5. Step 5: Solve for x
    x = 537,842,288,825,739.06/28,117,798.60
  6. Step 6: Final answer
    x = 19,128,179.15

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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.