Home / 76,389,656.04-105,420,268.87-42,905,026.89

Finding the Fourth Proportional to 76,389,656.04, 105,420,268.87 and 42,905,026.89

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Solution

The fourth proportional to 76,389,656.04, 105,420,268.87 and 42,905,026.89 is: 59,210,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,389,656.04 : 105,420,268.87 = 42,905,026.89 : x
  2. Step 2: Convert to fraction form
    76,389,656.04/105,420,268.87 = 42,905,026.89/x
  3. Step 3: Cross multiply
    76,389,656.04x = 105,420,268.87 × 42,905,026.89
  4. Step 4: Simplify right side
    76,389,656.04x = 4,523,059,470,511,118
  5. Step 5: Solve for x
    x = 4,523,059,470,511,118/76,389,656.04
  6. Step 6: Final answer
    x = 59,210,365.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.