Home / 309,766,003.09-427,461,707.88-170,533,775.50

Finding the Fourth Proportional to 309,766,003.09, 427,461,707.88 and 170,533,775.50

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Solution

The fourth proportional to 309,766,003.09, 427,461,707.88 and 170,533,775.50 is: 235,328,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,766,003.09 : 427,461,707.88 = 170,533,775.50 : x
  2. Step 2: Convert to fraction form
    309,766,003.09/427,461,707.88 = 170,533,775.50/x
  3. Step 3: Cross multiply
    309,766,003.09x = 427,461,707.88 × 170,533,775.50
  4. Step 4: Simplify right side
    309,766,003.09x = 72,896,658,925,385,840
  5. Step 5: Solve for x
    x = 72,896,658,925,385,840/309,766,003.09
  6. Step 6: Final answer
    x = 235,328,145.11

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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.