Home / 419,230,547.40-578,514,546.98-231,058,271.12

Finding the Fourth Proportional to 419,230,547.40, 578,514,546.98 and 231,058,271.12

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Solution

The fourth proportional to 419,230,547.40, 578,514,546.98 and 231,058,271.12 is: 318,847,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,230,547.40 : 578,514,546.98 = 231,058,271.12 : x
  2. Step 2: Convert to fraction form
    419,230,547.40/578,514,546.98 = 231,058,271.12/x
  3. Step 3: Cross multiply
    419,230,547.40x = 578,514,546.98 × 231,058,271.12
  4. Step 4: Simplify right side
    419,230,547.40x = 133,670,571,042,968,832
  5. Step 5: Solve for x
    x = 133,670,571,042,968,832/419,230,547.40
  6. Step 6: Final answer
    x = 318,847,402.39

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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.