Home / 742,985,980.35-1,114,479,177.69-218,355,053.85

Finding the Fourth Proportional to 742,985,980.35, 1,114,479,177.69 and 218,355,053.85

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Solution

The fourth proportional to 742,985,980.35, 1,114,479,177.69 and 218,355,053.85 is: 327,532,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,985,980.35 : 1,114,479,177.69 = 218,355,053.85 : x
  2. Step 2: Convert to fraction form
    742,985,980.35/1,114,479,177.69 = 218,355,053.85/x
  3. Step 3: Cross multiply
    742,985,980.35x = 1,114,479,177.69 × 218,355,053.85
  4. Step 4: Simplify right side
    742,985,980.35x = 243,352,160,859,203,680
  5. Step 5: Solve for x
    x = 243,352,160,859,203,680/742,985,980.35
  6. Step 6: Final answer
    x = 327,532,641.66

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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.