Home / 336,871,904.40-505,307,856.60-287,554,179.60

Finding the Fourth Proportional to 336,871,904.40, 505,307,856.60 and 287,554,179.60

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Solution

The fourth proportional to 336,871,904.40, 505,307,856.60 and 287,554,179.60 is: 431,331,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,871,904.40 : 505,307,856.60 = 287,554,179.60 : x
  2. Step 2: Convert to fraction form
    336,871,904.40/505,307,856.60 = 287,554,179.60/x
  3. Step 3: Cross multiply
    336,871,904.40x = 505,307,856.60 × 287,554,179.60
  4. Step 4: Simplify right side
    336,871,904.40x = 145,303,386,150,047,456
  5. Step 5: Solve for x
    x = 145,303,386,150,047,456/336,871,904.40
  6. Step 6: Final answer
    x = 431,331,269.40

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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.