Home / 742,985,983.36-1,114,479,182.20-218,355,056.86

Finding the Fourth Proportional to 742,985,983.36, 1,114,479,182.20 and 218,355,056.86

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Solution

The fourth proportional to 742,985,983.36, 1,114,479,182.20 and 218,355,056.86 is: 327,532,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,985,983.36 : 1,114,479,182.20 = 218,355,056.86 : x
  2. Step 2: Convert to fraction form
    742,985,983.36/1,114,479,182.20 = 218,355,056.86/x
  3. Step 3: Cross multiply
    742,985,983.36x = 1,114,479,182.20 × 218,355,056.86
  4. Step 4: Simplify right side
    742,985,983.36x = 243,352,165,198,567,328
  5. Step 5: Solve for x
    x = 243,352,165,198,567,328/742,985,983.36
  6. Step 6: Final answer
    x = 327,532,646.17

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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.