Home / 107,675,999.80-161,513,999.70-42,989,788.60

Finding the Fourth Proportional to 107,675,999.80, 161,513,999.70 and 42,989,788.60

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Solution

The fourth proportional to 107,675,999.80, 161,513,999.70 and 42,989,788.60 is: 64,484,682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,675,999.80 : 161,513,999.70 = 42,989,788.60 : x
  2. Step 2: Convert to fraction form
    107,675,999.80/161,513,999.70 = 42,989,788.60/x
  3. Step 3: Cross multiply
    107,675,999.80x = 161,513,999.70 × 42,989,788.60
  4. Step 4: Simplify right side
    107,675,999.80x = 6,943,452,703,043,463
  5. Step 5: Solve for x
    x = 6,943,452,703,043,463/107,675,999.80
  6. Step 6: Final answer
    x = 64,484,682.90

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1.5x scale

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.