Home / 155,377,363.95-214,420,780.80-85,762,763.28

Finding the Fourth Proportional to 155,377,363.95, 214,420,780.80 and 85,762,763.28

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Solution

The fourth proportional to 155,377,363.95, 214,420,780.80 and 85,762,763.28 is: 118,352,623.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,377,363.95 : 214,420,780.80 = 85,762,763.28 : x
  2. Step 2: Convert to fraction form
    155,377,363.95/214,420,780.80 = 85,762,763.28/x
  3. Step 3: Cross multiply
    155,377,363.95x = 214,420,780.80 × 85,762,763.28
  4. Step 4: Simplify right side
    155,377,363.95x = 18,389,318,666,063,172
  5. Step 5: Solve for x
    x = 18,389,318,666,063,172/155,377,363.95
  6. Step 6: Final answer
    x = 118,352,623.56

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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.