Home / 401,361,737.70-602,042,606.55-128,760,060.90

Finding the Fourth Proportional to 401,361,737.70, 602,042,606.55 and 128,760,060.90

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Solution

The fourth proportional to 401,361,737.70, 602,042,606.55 and 128,760,060.90 is: 193,140,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,361,737.70 : 602,042,606.55 = 128,760,060.90 : x
  2. Step 2: Convert to fraction form
    401,361,737.70/602,042,606.55 = 128,760,060.90/x
  3. Step 3: Cross multiply
    401,361,737.70x = 602,042,606.55 × 128,760,060.90
  4. Step 4: Simplify right side
    401,361,737.70x = 77,519,042,683,772,736
  5. Step 5: Solve for x
    x = 77,519,042,683,772,736/401,361,737.70
  6. Step 6: Final answer
    x = 193,140,091.35

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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.