Home / 128,045,561.36-176,719,695.72-73,028,806.16

Finding the Fourth Proportional to 128,045,561.36, 176,719,695.72 and 73,028,806.16

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Solution

The fourth proportional to 128,045,561.36, 176,719,695.72 and 73,028,806.16 is: 100,789,346.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,045,561.36 : 176,719,695.72 = 73,028,806.16 : x
  2. Step 2: Convert to fraction form
    128,045,561.36/176,719,695.72 = 73,028,806.16/x
  3. Step 3: Cross multiply
    128,045,561.36x = 176,719,695.72 × 73,028,806.16
  4. Step 4: Simplify right side
    128,045,561.36x = 12,905,628,403,390,060
  5. Step 5: Solve for x
    x = 12,905,628,403,390,060/128,045,561.36
  6. Step 6: Final answer
    x = 100,789,346.12

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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.