Home / 13,686,196.95-18,887,828.54-7,884,873.27

Finding the Fourth Proportional to 13,686,196.95, 18,887,828.54 and 7,884,873.27

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Solution

The fourth proportional to 13,686,196.95, 18,887,828.54 and 7,884,873.27 is: 10,881,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,196.95 : 18,887,828.54 = 7,884,873.27 : x
  2. Step 2: Convert to fraction form
    13,686,196.95/18,887,828.54 = 7,884,873.27/x
  3. Step 3: Cross multiply
    13,686,196.95x = 18,887,828.54 × 7,884,873.27
  4. Step 4: Simplify right side
    13,686,196.95x = 148,928,134,343,964.75
  5. Step 5: Solve for x
    x = 148,928,134,343,964.75/13,686,196.95
  6. Step 6: Final answer
    x = 10,881,630.22

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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.