Home / 388,965,619,612.68-583,477,855,085.76-120,381,764,958.24

Finding the Fourth Proportional to 388,965,619,612.68, 583,477,855,085.76 and 120,381,764,958.24

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Solution

The fourth proportional to 388,965,619,612.68, 583,477,855,085.76 and 120,381,764,958.24 is: 180,581,754,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,965,619,612.68 : 583,477,855,085.76 = 120,381,764,958.24 : x
  2. Step 2: Convert to fraction form
    388,965,619,612.68/583,477,855,085.76 = 120,381,764,958.24/x
  3. Step 3: Cross multiply
    388,965,619,612.68x = 583,477,855,085.76 × 120,381,764,958.24
  4. Step 4: Simplify right side
    388,965,619,612.68x = 70,240,094,009,271,980,654,592
  5. Step 5: Solve for x
    x = 70,240,094,009,271,980,654,592/388,965,619,612.68
  6. Step 6: Final answer
    x = 180,581,754,447.13

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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.