Home / 9,989,445.04-13,785,434.20-5,405,766.46

Finding the Fourth Proportional to 9,989,445.04, 13,785,434.20 and 5,405,766.46

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Solution

The fourth proportional to 9,989,445.04, 13,785,434.20 and 5,405,766.46 is: 7,459,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,445.04 : 13,785,434.20 = 5,405,766.46 : x
  2. Step 2: Convert to fraction form
    9,989,445.04/13,785,434.20 = 5,405,766.46/x
  3. Step 3: Cross multiply
    9,989,445.04x = 13,785,434.20 × 5,405,766.46
  4. Step 4: Simplify right side
    9,989,445.04x = 74,520,837,834,896.92
  5. Step 5: Solve for x
    x = 74,520,837,834,896.92/9,989,445.04
  6. Step 6: Final answer
    x = 7,459,957.74

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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.