Home / 144,133,071.20-216,199,606.80-142,789,378.40

Finding the Fourth Proportional to 144,133,071.20, 216,199,606.80 and 142,789,378.40

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Solution

The fourth proportional to 144,133,071.20, 216,199,606.80 and 142,789,378.40 is: 214,184,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,133,071.20 : 216,199,606.80 = 142,789,378.40 : x
  2. Step 2: Convert to fraction form
    144,133,071.20/216,199,606.80 = 142,789,378.40/x
  3. Step 3: Cross multiply
    144,133,071.20x = 216,199,606.80 × 142,789,378.40
  4. Step 4: Simplify right side
    144,133,071.20x = 30,871,007,465,296,416
  5. Step 5: Solve for x
    x = 30,871,007,465,296,416/144,133,071.20
  6. Step 6: Final answer
    x = 214,184,067.60

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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.