Home / 21,505,513.80-32,258,270.70-7,130,800.20

Finding the Fourth Proportional to 21,505,513.80, 32,258,270.70 and 7,130,800.20

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Solution

The fourth proportional to 21,505,513.80, 32,258,270.70 and 7,130,800.20 is: 10,696,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505,513.80 : 32,258,270.70 = 7,130,800.20 : x
  2. Step 2: Convert to fraction form
    21,505,513.80/32,258,270.70 = 7,130,800.20/x
  3. Step 3: Cross multiply
    21,505,513.80x = 32,258,270.70 × 7,130,800.20
  4. Step 4: Simplify right side
    21,505,513.80x = 230,027,283,159,214.16
  5. Step 5: Solve for x
    x = 230,027,283,159,214.16/21,505,513.80
  6. Step 6: Final answer
    x = 10,696,200.30

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1.5x scale

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.