Home / 28,553,872.12-42,830,807.10-8,359,114.12

Finding the Fourth Proportional to 28,553,872.12, 42,830,807.10 and 8,359,114.12

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Solution

The fourth proportional to 28,553,872.12, 42,830,807.10 and 8,359,114.12 is: 12,538,670.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553,872.12 : 42,830,807.10 = 8,359,114.12 : x
  2. Step 2: Convert to fraction form
    28,553,872.12/42,830,807.10 = 8,359,114.12/x
  3. Step 3: Cross multiply
    28,553,872.12x = 42,830,807.10 × 8,359,114.12
  4. Step 4: Simplify right side
    28,553,872.12x = 358,027,604,400,606.25
  5. Step 5: Solve for x
    x = 358,027,604,400,606.25/28,553,872.12
  6. Step 6: Final answer
    x = 12,538,670.86

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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.