Home / 80,824,242.32-121,153,541.21-61,352,247.54

Finding the Fourth Proportional to 80,824,242.32, 121,153,541.21 and 61,352,247.54

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Solution

The fourth proportional to 80,824,242.32, 121,153,541.21 and 61,352,247.54 is: 91,965,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,824,242.32 : 121,153,541.21 = 61,352,247.54 : x
  2. Step 2: Convert to fraction form
    80,824,242.32/121,153,541.21 = 61,352,247.54/x
  3. Step 3: Cross multiply
    80,824,242.32x = 121,153,541.21 × 61,352,247.54
  4. Step 4: Simplify right side
    80,824,242.32x = 7,433,042,051,041,389
  5. Step 5: Solve for x
    x = 7,433,042,051,041,389/80,824,242.32
  6. Step 6: Final answer
    x = 91,965,502.40

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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.