Home / 645,112,358.40-967,672,036.80-160,438,166.40

Finding the Fourth Proportional to 645,112,358.40, 967,672,036.80 and 160,438,166.40

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Solution

The fourth proportional to 645,112,358.40, 967,672,036.80 and 160,438,166.40 is: 240,658,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,112,358.40 : 967,672,036.80 = 160,438,166.40 : x
  2. Step 2: Convert to fraction form
    645,112,358.40/967,672,036.80 = 160,438,166.40/x
  3. Step 3: Cross multiply
    645,112,358.40x = 967,672,036.80 × 160,438,166.40
  4. Step 4: Simplify right side
    645,112,358.40x = 155,251,527,260,745,312
  5. Step 5: Solve for x
    x = 155,251,527,260,745,312/645,112,358.40
  6. Step 6: Final answer
    x = 240,658,119.84

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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.