Home / 142,905,472.77-197,212,952.30-80,186,210.04

Finding the Fourth Proportional to 142,905,472.77, 197,212,952.30 and 80,186,210.04

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Solution

The fourth proportional to 142,905,472.77, 197,212,952.30 and 80,186,210.04 is: 110,658,877.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,905,472.77 : 197,212,952.30 = 80,186,210.04 : x
  2. Step 2: Convert to fraction form
    142,905,472.77/197,212,952.30 = 80,186,210.04/x
  3. Step 3: Cross multiply
    142,905,472.77x = 197,212,952.30 × 80,186,210.04
  4. Step 4: Simplify right side
    142,905,472.77x = 15,813,759,216,074,918
  5. Step 5: Solve for x
    x = 15,813,759,216,074,918/142,905,472.77
  6. Step 6: Final answer
    x = 110,658,877.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.