Home / 42,964,973.80-64,447,460.70-25,978,042.60

Finding the Fourth Proportional to 42,964,973.80, 64,447,460.70 and 25,978,042.60

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Solution

The fourth proportional to 42,964,973.80, 64,447,460.70 and 25,978,042.60 is: 38,967,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,964,973.80 : 64,447,460.70 = 25,978,042.60 : x
  2. Step 2: Convert to fraction form
    42,964,973.80/64,447,460.70 = 25,978,042.60/x
  3. Step 3: Cross multiply
    42,964,973.80x = 64,447,460.70 × 25,978,042.60
  4. Step 4: Simplify right side
    42,964,973.80x = 1,674,218,879,526,426
  5. Step 5: Solve for x
    x = 1,674,218,879,526,426/42,964,973.80
  6. Step 6: Final answer
    x = 38,967,063.90

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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.