Home / 989,786,585.66-1,484,871,065.22-376,323,112.94

Finding the Fourth Proportional to 989,786,585.66, 1,484,871,065.22 and 376,323,112.94

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Solution

The fourth proportional to 989,786,585.66, 1,484,871,065.22 and 376,323,112.94 is: 564,557,359.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,786,585.66 : 1,484,871,065.22 = 376,323,112.94 : x
  2. Step 2: Convert to fraction form
    989,786,585.66/1,484,871,065.22 = 376,323,112.94/x
  3. Step 3: Cross multiply
    989,786,585.66x = 1,484,871,065.22 × 376,323,112.94
  4. Step 4: Simplify right side
    989,786,585.66x = 558,791,301,578,124,160
  5. Step 5: Solve for x
    x = 558,791,301,578,124,160/989,786,585.66
  6. Step 6: Final answer
    x = 564,557,359.81

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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.