Home / 139,254,486.32-192,175,798.56-76,532,807.54

Finding the Fourth Proportional to 139,254,486.32, 192,175,798.56 and 76,532,807.54

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Solution

The fourth proportional to 139,254,486.32, 192,175,798.56 and 76,532,807.54 is: 105,617,806.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,254,486.32 : 192,175,798.56 = 76,532,807.54 : x
  2. Step 2: Convert to fraction form
    139,254,486.32/192,175,798.56 = 76,532,807.54/x
  3. Step 3: Cross multiply
    139,254,486.32x = 192,175,798.56 × 76,532,807.54
  4. Step 4: Simplify right side
    139,254,486.32x = 14,707,753,405,038,290
  5. Step 5: Solve for x
    x = 14,707,753,405,038,290/139,254,486.32
  6. Step 6: Final answer
    x = 105,617,806.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.