Home / 28,088,719.30-42,133,078.95-19,578,664.90

Finding the Fourth Proportional to 28,088,719.30, 42,133,078.95 and 19,578,664.90

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Solution

The fourth proportional to 28,088,719.30, 42,133,078.95 and 19,578,664.90 is: 29,367,997.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088,719.30 : 42,133,078.95 = 19,578,664.90 : x
  2. Step 2: Convert to fraction form
    28,088,719.30/42,133,078.95 = 19,578,664.90/x
  3. Step 3: Cross multiply
    28,088,719.30x = 42,133,078.95 × 19,578,664.90
  4. Step 4: Simplify right side
    28,088,719.30x = 824,909,433,967,293.88
  5. Step 5: Solve for x
    x = 824,909,433,967,293.88/28,088,719.30
  6. Step 6: Final answer
    x = 29,367,997.35

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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.