Home / 129,896,534.40-194,844,801.60-80,578,809.60

Finding the Fourth Proportional to 129,896,534.40, 194,844,801.60 and 80,578,809.60

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Solution

The fourth proportional to 129,896,534.40, 194,844,801.60 and 80,578,809.60 is: 120,868,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,896,534.40 : 194,844,801.60 = 80,578,809.60 : x
  2. Step 2: Convert to fraction form
    129,896,534.40/194,844,801.60 = 80,578,809.60/x
  3. Step 3: Cross multiply
    129,896,534.40x = 194,844,801.60 × 80,578,809.60
  4. Step 4: Simplify right side
    129,896,534.40x = 15,700,362,169,676,174
  5. Step 5: Solve for x
    x = 15,700,362,169,676,174/129,896,534.40
  6. Step 6: Final answer
    x = 120,868,214.40

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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.