Home / 28,088,719.80-42,133,079.70-19,578,665.40

Finding the Fourth Proportional to 28,088,719.80, 42,133,079.70 and 19,578,665.40

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Solution

The fourth proportional to 28,088,719.80, 42,133,079.70 and 19,578,665.40 is: 29,367,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088,719.80 : 42,133,079.70 = 19,578,665.40 : x
  2. Step 2: Convert to fraction form
    28,088,719.80/42,133,079.70 = 19,578,665.40/x
  3. Step 3: Cross multiply
    28,088,719.80x = 42,133,079.70 × 19,578,665.40
  4. Step 4: Simplify right side
    28,088,719.80x = 824,909,469,717,832.38
  5. Step 5: Solve for x
    x = 824,909,469,717,832.38/28,088,719.80
  6. Step 6: Final answer
    x = 29,367,998.10

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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.