Home / 102,930,457.26-142,046,499.13-55,889,513.42

Finding the Fourth Proportional to 102,930,457.26, 142,046,499.13 and 55,889,513.42

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Solution

The fourth proportional to 102,930,457.26, 142,046,499.13 and 55,889,513.42 is: 77,128,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930,457.26 : 142,046,499.13 = 55,889,513.42 : x
  2. Step 2: Convert to fraction form
    102,930,457.26/142,046,499.13 = 55,889,513.42/x
  3. Step 3: Cross multiply
    102,930,457.26x = 142,046,499.13 × 55,889,513.42
  4. Step 4: Simplify right side
    102,930,457.26x = 7,938,909,719,390,153
  5. Step 5: Solve for x
    x = 7,938,909,719,390,153/102,930,457.26
  6. Step 6: Final answer
    x = 77,128,868.66

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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.