Home / 221,435,690.70-332,153,536.05-129,224,772.30

Finding the Fourth Proportional to 221,435,690.70, 332,153,536.05 and 129,224,772.30

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Solution

The fourth proportional to 221,435,690.70, 332,153,536.05 and 129,224,772.30 is: 193,837,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,435,690.70 : 332,153,536.05 = 129,224,772.30 : x
  2. Step 2: Convert to fraction form
    221,435,690.70/332,153,536.05 = 129,224,772.30/x
  3. Step 3: Cross multiply
    221,435,690.70x = 332,153,536.05 × 129,224,772.30
  4. Step 4: Simplify right side
    221,435,690.70x = 42,922,465,064,701,088
  5. Step 5: Solve for x
    x = 42,922,465,064,701,088/221,435,690.70
  6. Step 6: Final answer
    x = 193,837,158.45

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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.