Home / 137,549,610.19-189,820,029.32-78,811,096.15

Finding the Fourth Proportional to 137,549,610.19, 189,820,029.32 and 78,811,096.15

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Solution

The fourth proportional to 137,549,610.19, 189,820,029.32 and 78,811,096.15 is: 108,760,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,549,610.19 : 189,820,029.32 = 78,811,096.15 : x
  2. Step 2: Convert to fraction form
    137,549,610.19/189,820,029.32 = 78,811,096.15/x
  3. Step 3: Cross multiply
    137,549,610.19x = 189,820,029.32 × 78,811,096.15
  4. Step 4: Simplify right side
    137,549,610.19x = 14,959,924,581,934,340
  5. Step 5: Solve for x
    x = 14,959,924,581,934,340/137,549,610.19
  6. Step 6: Final answer
    x = 108,760,210.67

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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.