Home / 79,178,923.17-109,228,085.37-68,710,246.20

Finding the Fourth Proportional to 79,178,923.17, 109,228,085.37 and 68,710,246.20

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Solution

The fourth proportional to 79,178,923.17, 109,228,085.37 and 68,710,246.20 is: 94,786,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178,923.17 : 109,228,085.37 = 68,710,246.20 : x
  2. Step 2: Convert to fraction form
    79,178,923.17/109,228,085.37 = 68,710,246.20/x
  3. Step 3: Cross multiply
    79,178,923.17x = 109,228,085.37 × 68,710,246.20
  4. Step 4: Simplify right side
    79,178,923.17x = 7,505,088,637,727,319
  5. Step 5: Solve for x
    x = 7,505,088,637,727,319/79,178,923.17
  6. Step 6: Final answer
    x = 94,786,444.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.