Home / 42,875,708.30-64,313,435.21-12,170,313.65

Finding the Fourth Proportional to 42,875,708.30, 64,313,435.21 and 12,170,313.65

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Solution

The fourth proportional to 42,875,708.30, 64,313,435.21 and 12,170,313.65 is: 18,255,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,875,708.30 : 64,313,435.21 = 12,170,313.65 : x
  2. Step 2: Convert to fraction form
    42,875,708.30/64,313,435.21 = 12,170,313.65/x
  3. Step 3: Cross multiply
    42,875,708.30x = 64,313,435.21 × 12,170,313.65
  4. Step 4: Simplify right side
    42,875,708.30x = 782,714,678,260,346.62
  5. Step 5: Solve for x
    x = 782,714,678,260,346.62/42,875,708.30
  6. Step 6: Final answer
    x = 18,255,434.35

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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.