Home / 28,580,456.54-42,870,719.10-7,831,071.92

Finding the Fourth Proportional to 28,580,456.54, 42,870,719.10 and 7,831,071.92

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Solution

The fourth proportional to 28,580,456.54, 42,870,719.10 and 7,831,071.92 is: 11,746,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580,456.54 : 42,870,719.10 = 7,831,071.92 : x
  2. Step 2: Convert to fraction form
    28,580,456.54/42,870,719.10 = 7,831,071.92/x
  3. Step 3: Cross multiply
    28,580,456.54x = 42,870,719.10 × 7,831,071.92
  4. Step 4: Simplify right side
    28,580,456.54x = 335,723,684,534,217.69
  5. Step 5: Solve for x
    x = 335,723,684,534,217.69/28,580,456.54
  6. Step 6: Final answer
    x = 11,746,617.28

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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.