Home / 126,015,316.40-188,739,539.40-74,996,980.40

Finding the Fourth Proportional to 126,015,316.40, 188,739,539.40 and 74,996,980.40

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Solution

The fourth proportional to 126,015,316.40, 188,739,539.40 and 74,996,980.40 is: 112,326,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,015,316.40 : 188,739,539.40 = 74,996,980.40 : x
  2. Step 2: Convert to fraction form
    126,015,316.40/188,739,539.40 = 74,996,980.40/x
  3. Step 3: Cross multiply
    126,015,316.40x = 188,739,539.40 × 74,996,980.40
  4. Step 4: Simplify right side
    126,015,316.40x = 14,154,895,537,086,830
  5. Step 5: Solve for x
    x = 14,154,895,537,086,830/126,015,316.40
  6. Step 6: Final answer
    x = 112,326,786.47

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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.