Home / 390,157,043.94-585,734,985.60-335,176,628.67

Finding the Fourth Proportional to 390,157,043.94, 585,734,985.60 and 335,176,628.67

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Solution

The fourth proportional to 390,157,043.94, 585,734,985.60 and 335,176,628.67 is: 503,193,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,157,043.94 : 585,734,985.60 = 335,176,628.67 : x
  2. Step 2: Convert to fraction form
    390,157,043.94/585,734,985.60 = 335,176,628.67/x
  3. Step 3: Cross multiply
    390,157,043.94x = 585,734,985.60 × 335,176,628.67
  4. Step 4: Simplify right side
    390,157,043.94x = 196,324,677,767,479,008
  5. Step 5: Solve for x
    x = 196,324,677,767,479,008/390,157,043.94
  6. Step 6: Final answer
    x = 503,193,985.13

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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.