Home / 125,388,803.60-188,083,205.40-76,283,655.20

Finding the Fourth Proportional to 125,388,803.60, 188,083,205.40 and 76,283,655.20

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Solution

The fourth proportional to 125,388,803.60, 188,083,205.40 and 76,283,655.20 is: 114,425,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,388,803.60 : 188,083,205.40 = 76,283,655.20 : x
  2. Step 2: Convert to fraction form
    125,388,803.60/188,083,205.40 = 76,283,655.20/x
  3. Step 3: Cross multiply
    125,388,803.60x = 188,083,205.40 × 76,283,655.20
  4. Step 4: Simplify right side
    125,388,803.60x = 14,347,674,389,644,380
  5. Step 5: Solve for x
    x = 14,347,674,389,644,380/125,388,803.60
  6. Step 6: Final answer
    x = 114,425,482.80

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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.