Home / 28,072,595.54-42,112,910.10-8,643,465.38

Finding the Fourth Proportional to 28,072,595.54, 42,112,910.10 and 8,643,465.38

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Solution

The fourth proportional to 28,072,595.54, 42,112,910.10 and 8,643,465.38 is: 12,966,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,595.54 : 42,112,910.10 = 8,643,465.38 : x
  2. Step 2: Convert to fraction form
    28,072,595.54/42,112,910.10 = 8,643,465.38/x
  3. Step 3: Cross multiply
    28,072,595.54x = 42,112,910.10 × 8,643,465.38
  4. Step 4: Simplify right side
    28,072,595.54x = 364,001,480,289,837.81
  5. Step 5: Solve for x
    x = 364,001,480,289,837.81/28,072,595.54
  6. Step 6: Final answer
    x = 12,966,434.82

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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.