Home / 155,945,783.40-233,955,999.90-79,280,644.20

Finding the Fourth Proportional to 155,945,783.40, 233,955,999.90 and 79,280,644.20

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Solution

The fourth proportional to 155,945,783.40, 233,955,999.90 and 79,280,644.20 is: 118,939,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,945,783.40 : 233,955,999.90 = 79,280,644.20 : x
  2. Step 2: Convert to fraction form
    155,945,783.40/233,955,999.90 = 79,280,644.20/x
  3. Step 3: Cross multiply
    155,945,783.40x = 233,955,999.90 × 79,280,644.20
  4. Step 4: Simplify right side
    155,945,783.40x = 18,548,182,386,527,136
  5. Step 5: Solve for x
    x = 18,548,182,386,527,136/155,945,783.40
  6. Step 6: Final answer
    x = 118,939,941.70

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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.