Home / 540,684,781.57-811,058,574.94-208,693,687.28

Finding the Fourth Proportional to 540,684,781.57, 811,058,574.94 and 208,693,687.28

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Solution

The fourth proportional to 540,684,781.57, 811,058,574.94 and 208,693,687.28 is: 313,052,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,684,781.57 : 811,058,574.94 = 208,693,687.28 : x
  2. Step 2: Convert to fraction form
    540,684,781.57/811,058,574.94 = 208,693,687.28/x
  3. Step 3: Cross multiply
    540,684,781.57x = 811,058,574.94 × 208,693,687.28
  4. Step 4: Simplify right side
    540,684,781.57x = 169,262,804,603,247,328
  5. Step 5: Solve for x
    x = 169,262,804,603,247,328/540,684,781.57
  6. Step 6: Final answer
    x = 313,052,651.70

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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.