Home / 28,276,197.76-42,413,448.96-7,807,168.12

Finding the Fourth Proportional to 28,276,197.76, 42,413,448.96 and 7,807,168.12

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Solution

The fourth proportional to 28,276,197.76, 42,413,448.96 and 7,807,168.12 is: 11,710,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276,197.76 : 42,413,448.96 = 7,807,168.12 : x
  2. Step 2: Convert to fraction form
    28,276,197.76/42,413,448.96 = 7,807,168.12/x
  3. Step 3: Cross multiply
    28,276,197.76x = 42,413,448.96 × 7,807,168.12
  4. Step 4: Simplify right side
    28,276,197.76x = 331,128,926,579,759.19
  5. Step 5: Solve for x
    x = 331,128,926,579,759.19/28,276,197.76
  6. Step 6: Final answer
    x = 11,710,518.13

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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.