Home / 72,681,586.02-109,009,434.36-28,958,680.17

Finding the Fourth Proportional to 72,681,586.02, 109,009,434.36 and 28,958,680.17

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Solution

The fourth proportional to 72,681,586.02, 109,009,434.36 and 28,958,680.17 is: 43,432,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681,586.02 : 109,009,434.36 = 28,958,680.17 : x
  2. Step 2: Convert to fraction form
    72,681,586.02/109,009,434.36 = 28,958,680.17/x
  3. Step 3: Cross multiply
    72,681,586.02x = 109,009,434.36 × 28,958,680.17
  4. Step 4: Simplify right side
    72,681,586.02x = 3,156,769,345,143,849
  5. Step 5: Solve for x
    x = 3,156,769,345,143,849/72,681,586.02
  6. Step 6: Final answer
    x = 43,432,862.68

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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.