Home / 686,224,666.76-1,029,087,812.75-375,561,874.44

Finding the Fourth Proportional to 686,224,666.76, 1,029,087,812.75 and 375,561,874.44

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Solution

The fourth proportional to 686,224,666.76, 1,029,087,812.75 and 375,561,874.44 is: 563,206,434.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,224,666.76 : 1,029,087,812.75 = 375,561,874.44 : x
  2. Step 2: Convert to fraction form
    686,224,666.76/1,029,087,812.75 = 375,561,874.44/x
  3. Step 3: Cross multiply
    686,224,666.76x = 1,029,087,812.75 × 375,561,874.44
  4. Step 4: Simplify right side
    686,224,666.76x = 386,486,147,917,871,936
  5. Step 5: Solve for x
    x = 386,486,147,917,871,936/686,224,666.76
  6. Step 6: Final answer
    x = 563,206,434.63

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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.