Home / 115,713,688.44-159,639,431.40-66,127,459.80

Finding the Fourth Proportional to 115,713,688.44, 159,639,431.40 and 66,127,459.80

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Solution

The fourth proportional to 115,713,688.44, 159,639,431.40 and 66,127,459.80 is: 91,229,916.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,713,688.44 : 159,639,431.40 = 66,127,459.80 : x
  2. Step 2: Convert to fraction form
    115,713,688.44/159,639,431.40 = 66,127,459.80/x
  3. Step 3: Cross multiply
    115,713,688.44x = 159,639,431.40 × 66,127,459.80
  4. Step 4: Simplify right side
    115,713,688.44x = 10,556,550,082,398,358
  5. Step 5: Solve for x
    x = 10,556,550,082,398,358/115,713,688.44
  6. Step 6: Final answer
    x = 91,229,916.05

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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.