Home / 257,548,967.40-386,323,451.10-85,052,404.20

Finding the Fourth Proportional to 257,548,967.40, 386,323,451.10 and 85,052,404.20

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Solution

The fourth proportional to 257,548,967.40, 386,323,451.10 and 85,052,404.20 is: 127,578,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,548,967.40 : 386,323,451.10 = 85,052,404.20 : x
  2. Step 2: Convert to fraction form
    257,548,967.40/386,323,451.10 = 85,052,404.20/x
  3. Step 3: Cross multiply
    257,548,967.40x = 386,323,451.10 × 85,052,404.20
  4. Step 4: Simplify right side
    257,548,967.40x = 32,857,738,314,896,136
  5. Step 5: Solve for x
    x = 32,857,738,314,896,136/257,548,967.40
  6. Step 6: Final answer
    x = 127,578,606.30

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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.