Home / 28,341,989.60-42,519,730.24-9,172,746.68

Finding the Fourth Proportional to 28,341,989.60, 42,519,730.24 and 9,172,746.68

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Solution

The fourth proportional to 28,341,989.60, 42,519,730.24 and 9,172,746.68 is: 13,761,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,341,989.60 : 42,519,730.24 = 9,172,746.68 : x
  2. Step 2: Convert to fraction form
    28,341,989.60/42,519,730.24 = 9,172,746.68/x
  3. Step 3: Cross multiply
    28,341,989.60x = 42,519,730.24 × 9,172,746.68
  4. Step 4: Simplify right side
    28,341,989.60x = 390,022,714,393,455.62
  5. Step 5: Solve for x
    x = 390,022,714,393,455.62/28,341,989.60
  6. Step 6: Final answer
    x = 13,761,303.28

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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.