Home / 125,655,341.40-188,483,012.10-84,840,672.60

Finding the Fourth Proportional to 125,655,341.40, 188,483,012.10 and 84,840,672.60

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Solution

The fourth proportional to 125,655,341.40, 188,483,012.10 and 84,840,672.60 is: 127,261,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,655,341.40 : 188,483,012.10 = 84,840,672.60 : x
  2. Step 2: Convert to fraction form
    125,655,341.40/188,483,012.10 = 84,840,672.60/x
  3. Step 3: Cross multiply
    125,655,341.40x = 188,483,012.10 × 84,840,672.60
  4. Step 4: Simplify right side
    125,655,341.40x = 15,991,025,520,237,936
  5. Step 5: Solve for x
    x = 15,991,025,520,237,936/125,655,341.40
  6. Step 6: Final answer
    x = 127,261,008.90

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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.