Home / 42,753,207.20-64,129,810.80-12,462,058.40

Finding the Fourth Proportional to 42,753,207.20, 64,129,810.80 and 12,462,058.40

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Solution

The fourth proportional to 42,753,207.20, 64,129,810.80 and 12,462,058.40 is: 18,693,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,753,207.20 : 64,129,810.80 = 12,462,058.40 : x
  2. Step 2: Convert to fraction form
    42,753,207.20/64,129,810.80 = 12,462,058.40/x
  3. Step 3: Cross multiply
    42,753,207.20x = 64,129,810.80 × 12,462,058.40
  4. Step 4: Simplify right side
    42,753,207.20x = 799,189,447,370,550.75
  5. Step 5: Solve for x
    x = 799,189,447,370,550.75/42,753,207.20
  6. Step 6: Final answer
    x = 18,693,087.60

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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.