Home / 99,786,509.32-149,685,129.60-31,634,515.48

Finding the Fourth Proportional to 99,786,509.32, 149,685,129.60 and 31,634,515.48

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Solution

The fourth proportional to 99,786,509.32, 149,685,129.60 and 31,634,515.48 is: 47,453,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,786,509.32 : 149,685,129.60 = 31,634,515.48 : x
  2. Step 2: Convert to fraction form
    99,786,509.32/149,685,129.60 = 31,634,515.48/x
  3. Step 3: Cross multiply
    99,786,509.32x = 149,685,129.60 × 31,634,515.48
  4. Step 4: Simplify right side
    99,786,509.32x = 4,735,216,549,457,006
  5. Step 5: Solve for x
    x = 4,735,216,549,457,006/99,786,509.32
  6. Step 6: Final answer
    x = 47,453,474.24

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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.