Home / 42,724,087.80-64,087,881.30-12,431,950.80

Finding the Fourth Proportional to 42,724,087.80, 64,087,881.30 and 12,431,950.80

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Solution

The fourth proportional to 42,724,087.80, 64,087,881.30 and 12,431,950.80 is: 18,648,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,724,087.80 : 64,087,881.30 = 12,431,950.80 : x
  2. Step 2: Convert to fraction form
    42,724,087.80/64,087,881.30 = 12,431,950.80/x
  3. Step 3: Cross multiply
    42,724,087.80x = 64,087,881.30 × 12,431,950.80
  4. Step 4: Simplify right side
    42,724,087.80x = 796,737,387,197,840
  5. Step 5: Solve for x
    x = 796,737,387,197,840/42,724,087.80
  6. Step 6: Final answer
    x = 18,648,435.30

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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.