Home / 72,862,151.76-109,277,130.12-21,035,496.96

Finding the Fourth Proportional to 72,862,151.76, 109,277,130.12 and 21,035,496.96

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Solution

The fourth proportional to 72,862,151.76, 109,277,130.12 and 21,035,496.96 is: 31,548,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,862,151.76 : 109,277,130.12 = 21,035,496.96 : x
  2. Step 2: Convert to fraction form
    72,862,151.76/109,277,130.12 = 21,035,496.96/x
  3. Step 3: Cross multiply
    72,862,151.76x = 109,277,130.12 × 21,035,496.96
  4. Step 4: Simplify right side
    72,862,151.76x = 2,298,698,738,436,784.50
  5. Step 5: Solve for x
    x = 2,298,698,738,436,784.50/72,862,151.76
  6. Step 6: Final answer
    x = 31,548,598.04

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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.