Home / 15,730,430.64-21,718,434.60-9,858,889.68

Finding the Fourth Proportional to 15,730,430.64, 21,718,434.60 and 9,858,889.68

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Solution

The fourth proportional to 15,730,430.64, 21,718,434.60 and 9,858,889.68 is: 13,611,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730,430.64 : 21,718,434.60 = 9,858,889.68 : x
  2. Step 2: Convert to fraction form
    15,730,430.64/21,718,434.60 = 9,858,889.68/x
  3. Step 3: Cross multiply
    15,730,430.64x = 21,718,434.60 × 9,858,889.68
  4. Step 4: Simplify right side
    15,730,430.64x = 214,119,650,743,694.94
  5. Step 5: Solve for x
    x = 214,119,650,743,694.94/15,730,430.64
  6. Step 6: Final answer
    x = 13,611,811.12

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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.