Home / 155,377,362.95-214,420,779.42-85,762,762.28

Finding the Fourth Proportional to 155,377,362.95, 214,420,779.42 and 85,762,762.28

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Solution

The fourth proportional to 155,377,362.95, 214,420,779.42 and 85,762,762.28 is: 118,352,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,377,362.95 : 214,420,779.42 = 85,762,762.28 : x
  2. Step 2: Convert to fraction form
    155,377,362.95/214,420,779.42 = 85,762,762.28/x
  3. Step 3: Cross multiply
    155,377,362.95x = 214,420,779.42 × 85,762,762.28
  4. Step 4: Simplify right side
    155,377,362.95x = 18,389,318,333,906,900
  5. Step 5: Solve for x
    x = 18,389,318,333,906,900/155,377,362.95
  6. Step 6: Final answer
    x = 118,352,622.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.