Home / 570,646,968.18-855,700,615.35-221,056,767.78

Finding the Fourth Proportional to 570,646,968.18, 855,700,615.35 and 221,056,767.78

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Solution

The fourth proportional to 570,646,968.18, 855,700,615.35 and 221,056,767.78 is: 331,480,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,646,968.18 : 855,700,615.35 = 221,056,767.78 : x
  2. Step 2: Convert to fraction form
    570,646,968.18/855,700,615.35 = 221,056,767.78/x
  3. Step 3: Cross multiply
    570,646,968.18x = 855,700,615.35 × 221,056,767.78
  4. Step 4: Simplify right side
    570,646,968.18x = 189,158,412,216,628,064
  5. Step 5: Solve for x
    x = 189,158,412,216,628,064/570,646,968.18
  6. Step 6: Final answer
    x = 331,480,622.46

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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.