Home / 142,675,862.40-196,909,498.56-84,729,110.40

Finding the Fourth Proportional to 142,675,862.40, 196,909,498.56 and 84,729,110.40

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Solution

The fourth proportional to 142,675,862.40, 196,909,498.56 and 84,729,110.40 is: 116,936,154.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,675,862.40 : 196,909,498.56 = 84,729,110.40 : x
  2. Step 2: Convert to fraction form
    142,675,862.40/196,909,498.56 = 84,729,110.40/x
  3. Step 3: Cross multiply
    142,675,862.40x = 196,909,498.56 × 84,729,110.40
  4. Step 4: Simplify right side
    142,675,862.40x = 16,683,966,642,298,882
  5. Step 5: Solve for x
    x = 16,683,966,642,298,882/142,675,862.40
  6. Step 6: Final answer
    x = 116,936,154.17

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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.