Home / 28,580,132.57-42,870,232.29-7,830,746.37

Finding the Fourth Proportional to 28,580,132.57, 42,870,232.29 and 7,830,746.37

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Solution

The fourth proportional to 28,580,132.57, 42,870,232.29 and 7,830,746.37 is: 11,746,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580,132.57 : 42,870,232.29 = 7,830,746.37 : x
  2. Step 2: Convert to fraction form
    28,580,132.57/42,870,232.29 = 7,830,746.37/x
  3. Step 3: Cross multiply
    28,580,132.57x = 42,870,232.29 × 7,830,746.37
  4. Step 4: Simplify right side
    28,580,132.57x = 335,705,915,885,974.31
  5. Step 5: Solve for x
    x = 335,705,915,885,974.31/28,580,132.57
  6. Step 6: Final answer
    x = 11,746,128.72

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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.