Home / 109,726,628.63-151,276,263.32-87,169,845.03

Finding the Fourth Proportional to 109,726,628.63, 151,276,263.32 and 87,169,845.03

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Solution

The fourth proportional to 109,726,628.63, 151,276,263.32 and 87,169,845.03 is: 120,178,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,726,628.63 : 151,276,263.32 = 87,169,845.03 : x
  2. Step 2: Convert to fraction form
    109,726,628.63/151,276,263.32 = 87,169,845.03/x
  3. Step 3: Cross multiply
    109,726,628.63x = 151,276,263.32 × 87,169,845.03
  4. Step 4: Simplify right side
    109,726,628.63x = 13,186,728,429,886,024
  5. Step 5: Solve for x
    x = 13,186,728,429,886,024/109,726,628.63
  6. Step 6: Final answer
    x = 120,178,015.08

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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.