Home / 155,812,178,836.68-215,002,666,896.66-87,227,347,556.04

Finding the Fourth Proportional to 155,812,178,836.68, 215,002,666,896.66 and 87,227,347,556.04

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Solution

The fourth proportional to 155,812,178,836.68, 215,002,666,896.66 and 87,227,347,556.04 is: 120,363,584,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,812,178,836.68 : 215,002,666,896.66 = 87,227,347,556.04 : x
  2. Step 2: Convert to fraction form
    155,812,178,836.68/215,002,666,896.66 = 87,227,347,556.04/x
  3. Step 3: Cross multiply
    155,812,178,836.68x = 215,002,666,896.66 × 87,227,347,556.04
  4. Step 4: Simplify right side
    155,812,178,836.68x = 18,754,112,350,870,455,713,792
  5. Step 5: Solve for x
    x = 18,754,112,350,870,455,713,792/155,812,178,836.68
  6. Step 6: Final answer
    x = 120,363,584,482.88

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1.5x scale

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.