Home / 145,449,500.77-200,724,570.06-79,374,256.60

Finding the Fourth Proportional to 145,449,500.77, 200,724,570.06 and 79,374,256.60

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Solution

The fourth proportional to 145,449,500.77, 200,724,570.06 and 79,374,256.60 is: 109,538,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,449,500.77 : 200,724,570.06 = 79,374,256.60 : x
  2. Step 2: Convert to fraction form
    145,449,500.77/200,724,570.06 = 79,374,256.60/x
  3. Step 3: Cross multiply
    145,449,500.77x = 200,724,570.06 × 79,374,256.60
  4. Step 4: Simplify right side
    145,449,500.77x = 15,932,363,529,867,116
  5. Step 5: Solve for x
    x = 15,932,363,529,867,116/145,449,500.77
  6. Step 6: Final answer
    x = 109,538,798.32

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1.5x scale

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.