Home / 38,417,186.11-53,016,133.76-21,013,148.65

Finding the Fourth Proportional to 38,417,186.11, 53,016,133.76 and 21,013,148.65

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Solution

The fourth proportional to 38,417,186.11, 53,016,133.76 and 21,013,148.65 is: 28,998,373.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,417,186.11 : 53,016,133.76 = 21,013,148.65 : x
  2. Step 2: Convert to fraction form
    38,417,186.11/53,016,133.76 = 21,013,148.65/x
  3. Step 3: Cross multiply
    38,417,186.11x = 53,016,133.76 × 21,013,148.65
  4. Step 4: Simplify right side
    38,417,186.11x = 1,114,035,899,442,097.62
  5. Step 5: Solve for x
    x = 1,114,035,899,442,097.62/38,417,186.11
  6. Step 6: Final answer
    x = 28,998,373.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.