Home / 20,730,090.60-31,095,135.90-18,338,606.10

Finding the Fourth Proportional to 20,730,090.60, 31,095,135.90 and 18,338,606.10

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Solution

The fourth proportional to 20,730,090.60, 31,095,135.90 and 18,338,606.10 is: 27,507,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,090.60 : 31,095,135.90 = 18,338,606.10 : x
  2. Step 2: Convert to fraction form
    20,730,090.60/31,095,135.90 = 18,338,606.10/x
  3. Step 3: Cross multiply
    20,730,090.60x = 31,095,135.90 × 18,338,606.10
  4. Step 4: Simplify right side
    20,730,090.60x = 570,241,448,896,069
  5. Step 5: Solve for x
    x = 570,241,448,896,069/20,730,090.60
  6. Step 6: Final answer
    x = 27,507,909.15

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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.