Home / 356,090,643.40-534,135,965.10-264,257,638.60

Finding the Fourth Proportional to 356,090,643.40, 534,135,965.10 and 264,257,638.60

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Solution

The fourth proportional to 356,090,643.40, 534,135,965.10 and 264,257,638.60 is: 396,386,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,090,643.40 : 534,135,965.10 = 264,257,638.60 : x
  2. Step 2: Convert to fraction form
    356,090,643.40/534,135,965.10 = 264,257,638.60/x
  3. Step 3: Cross multiply
    356,090,643.40x = 534,135,965.10 × 264,257,638.60
  4. Step 4: Simplify right side
    356,090,643.40x = 141,149,508,828,658,016
  5. Step 5: Solve for x
    x = 141,149,508,828,658,016/356,090,643.40
  6. Step 6: Final answer
    x = 396,386,457.90

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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.