Home / 79,628,423,976.48-109,913,412,455.01-63,381,832,260.78

Finding the Fourth Proportional to 79,628,423,976.48, 109,913,412,455.01 and 63,381,832,260.78

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Solution

The fourth proportional to 79,628,423,976.48, 109,913,412,455.01 and 63,381,832,260.78 is: 87,487,772,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,628,423,976.48 : 109,913,412,455.01 = 63,381,832,260.78 : x
  2. Step 2: Convert to fraction form
    79,628,423,976.48/109,913,412,455.01 = 63,381,832,260.78/x
  3. Step 3: Cross multiply
    79,628,423,976.48x = 109,913,412,455.01 × 63,381,832,260.78
  4. Step 4: Simplify right side
    79,628,423,976.48x = 6,966,513,471,433,370,238,976
  5. Step 5: Solve for x
    x = 6,966,513,471,433,370,238,976/79,628,423,976.48
  6. Step 6: Final answer
    x = 87,487,772,877.32

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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.