Home / 989,786,637.72-1,484,871,143.28-376,323,165

Finding the Fourth Proportional to 989,786,637.72, 1,484,871,143.28 and 376,323,165

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Solution

The fourth proportional to 989,786,637.72, 1,484,871,143.28 and 376,323,165 is: 564,557,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,786,637.72 : 1,484,871,143.28 = 376,323,165 : x
  2. Step 2: Convert to fraction form
    989,786,637.72/1,484,871,143.28 = 376,323,165/x
  3. Step 3: Cross multiply
    989,786,637.72x = 1,484,871,143.28 × 376,323,165
  4. Step 4: Simplify right side
    989,786,637.72x = 558,791,408,256,298,048
  5. Step 5: Solve for x
    x = 558,791,408,256,298,048/989,786,637.72
  6. Step 6: Final answer
    x = 564,557,437.90

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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.