Home / 77,661,936.30-116,492,904.45-72,875,030.70

Finding the Fourth Proportional to 77,661,936.30, 116,492,904.45 and 72,875,030.70

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Solution

The fourth proportional to 77,661,936.30, 116,492,904.45 and 72,875,030.70 is: 109,312,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661,936.30 : 116,492,904.45 = 72,875,030.70 : x
  2. Step 2: Convert to fraction form
    77,661,936.30/116,492,904.45 = 72,875,030.70/x
  3. Step 3: Cross multiply
    77,661,936.30x = 116,492,904.45 × 72,875,030.70
  4. Step 4: Simplify right side
    77,661,936.30x = 8,489,423,988,125,917
  5. Step 5: Solve for x
    x = 8,489,423,988,125,917/77,661,936.30
  6. Step 6: Final answer
    x = 109,312,546.05

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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.