Home / 72,681,583.02-109,009,429.86-28,958,677.16

Finding the Fourth Proportional to 72,681,583.02, 109,009,429.86 and 28,958,677.16

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Solution

The fourth proportional to 72,681,583.02, 109,009,429.86 and 28,958,677.16 is: 43,432,858.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681,583.02 : 109,009,429.86 = 28,958,677.16 : x
  2. Step 2: Convert to fraction form
    72,681,583.02/109,009,429.86 = 28,958,677.16/x
  3. Step 3: Cross multiply
    72,681,583.02x = 109,009,429.86 × 28,958,677.16
  4. Step 4: Simplify right side
    72,681,583.02x = 3,156,768,886,166,357
  5. Step 5: Solve for x
    x = 3,156,768,886,166,357/72,681,583.02
  6. Step 6: Final answer
    x = 43,432,858.16

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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.