Home / 137,605,586-189,852,951.20-78,057,075.20

Finding the Fourth Proportional to 137,605,586, 189,852,951.20 and 78,057,075.20

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Solution

The fourth proportional to 137,605,586, 189,852,951.20 and 78,057,075.20 is: 107,694,509.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,605,586 : 189,852,951.20 = 78,057,075.20 : x
  2. Step 2: Convert to fraction form
    137,605,586/189,852,951.20 = 78,057,075.20/x
  3. Step 3: Cross multiply
    137,605,586x = 189,852,951.20 × 78,057,075.20
  4. Step 4: Simplify right side
    137,605,586x = 14,819,366,088,760,330
  5. Step 5: Solve for x
    x = 14,819,366,088,760,330/137,605,586
  6. Step 6: Final answer
    x = 107,694,509.50

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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.