Home / 77,661,937.80-116,492,906.70-72,875,032.20

Finding the Fourth Proportional to 77,661,937.80, 116,492,906.70 and 72,875,032.20

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Solution

The fourth proportional to 77,661,937.80, 116,492,906.70 and 72,875,032.20 is: 109,312,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661,937.80 : 116,492,906.70 = 72,875,032.20 : x
  2. Step 2: Convert to fraction form
    77,661,937.80/116,492,906.70 = 72,875,032.20/x
  3. Step 3: Cross multiply
    77,661,937.80x = 116,492,906.70 × 72,875,032.20
  4. Step 4: Simplify right side
    77,661,937.80x = 8,489,424,326,834,096
  5. Step 5: Solve for x
    x = 8,489,424,326,834,096/77,661,937.80
  6. Step 6: Final answer
    x = 109,312,548.30

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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.