Home / 217,243,410.40-325,439,962.80-130,724,815.60

Finding the Fourth Proportional to 217,243,410.40, 325,439,962.80 and 130,724,815.60

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Solution

The fourth proportional to 217,243,410.40, 325,439,962.80 and 130,724,815.60 is: 195,831,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,243,410.40 : 325,439,962.80 = 130,724,815.60 : x
  2. Step 2: Convert to fraction form
    217,243,410.40/325,439,962.80 = 130,724,815.60/x
  3. Step 3: Cross multiply
    217,243,410.40x = 325,439,962.80 × 130,724,815.60
  4. Step 4: Simplify right side
    217,243,410.40x = 42,543,079,125,900,856
  5. Step 5: Solve for x
    x = 42,543,079,125,900,856/217,243,410.40
  6. Step 6: Final answer
    x = 195,831,390.46

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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.