Home / 10,198,117.40-15,261,746.70-9,347,811.80

Finding the Fourth Proportional to 10,198,117.40, 15,261,746.70 and 9,347,811.80

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Solution

The fourth proportional to 10,198,117.40, 15,261,746.70 and 9,347,811.80 is: 13,989,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198,117.40 : 15,261,746.70 = 9,347,811.80 : x
  2. Step 2: Convert to fraction form
    10,198,117.40/15,261,746.70 = 9,347,811.80/x
  3. Step 3: Cross multiply
    10,198,117.40x = 15,261,746.70 × 9,347,811.80
  4. Step 4: Simplify right side
    10,198,117.40x = 142,663,935,890,871.06
  5. Step 5: Solve for x
    x = 142,663,935,890,871.06/10,198,117.40
  6. Step 6: Final answer
    x = 13,989,242.36

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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.