Home / 19,678,263.05-27,156,678.32-11,417,701.61

Finding the Fourth Proportional to 19,678,263.05, 27,156,678.32 and 11,417,701.61

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Solution

The fourth proportional to 19,678,263.05, 27,156,678.32 and 11,417,701.61 is: 15,756,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678,263.05 : 27,156,678.32 = 11,417,701.61 : x
  2. Step 2: Convert to fraction form
    19,678,263.05/27,156,678.32 = 11,417,701.61/x
  3. Step 3: Cross multiply
    19,678,263.05x = 27,156,678.32 × 11,417,701.61
  4. Step 4: Simplify right side
    19,678,263.05x = 310,066,849,776,516.06
  5. Step 5: Solve for x
    x = 310,066,849,776,516.06/19,678,263.05
  6. Step 6: Final answer
    x = 15,756,820.05

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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.