Home / 142,637,607.20-213,956,410.80-141,293,914.40

Finding the Fourth Proportional to 142,637,607.20, 213,956,410.80 and 141,293,914.40

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Solution

The fourth proportional to 142,637,607.20, 213,956,410.80 and 141,293,914.40 is: 211,940,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,637,607.20 : 213,956,410.80 = 141,293,914.40 : x
  2. Step 2: Convert to fraction form
    142,637,607.20/213,956,410.80 = 141,293,914.40/x
  3. Step 3: Cross multiply
    142,637,607.20x = 213,956,410.80 × 141,293,914.40
  4. Step 4: Simplify right side
    142,637,607.20x = 30,230,738,792,906,440
  5. Step 5: Solve for x
    x = 30,230,738,792,906,440/142,637,607.20
  6. Step 6: Final answer
    x = 211,940,871.60

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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.