Home / 28,371,927.80-42,563,421.30-12,197,847.80

Finding the Fourth Proportional to 28,371,927.80, 42,563,421.30 and 12,197,847.80

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Solution

The fourth proportional to 28,371,927.80, 42,563,421.30 and 12,197,847.80 is: 18,299,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,927.80 : 42,563,421.30 = 12,197,847.80 : x
  2. Step 2: Convert to fraction form
    28,371,927.80/42,563,421.30 = 12,197,847.80/x
  3. Step 3: Cross multiply
    28,371,927.80x = 42,563,421.30 × 12,197,847.80
  4. Step 4: Simplify right side
    28,371,927.80x = 519,182,134,864,678.12
  5. Step 5: Solve for x
    x = 519,182,134,864,678.12/28,371,927.80
  6. Step 6: Final answer
    x = 18,299,149.02

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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.