Home / 286,724,742,141.50-395,680,182,884.42-158,266,215,000.90

Finding the Fourth Proportional to 286,724,742,141.50, 395,680,182,884.42 and 158,266,215,000.90

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Solution

The fourth proportional to 286,724,742,141.50, 395,680,182,884.42 and 158,266,215,000.90 is: 218,407,398,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,724,742,141.50 : 395,680,182,884.42 = 158,266,215,000.90 : x
  2. Step 2: Convert to fraction form
    286,724,742,141.50/395,680,182,884.42 = 158,266,215,000.90/x
  3. Step 3: Cross multiply
    286,724,742,141.50x = 395,680,182,884.42 × 158,266,215,000.90
  4. Step 4: Simplify right side
    286,724,742,141.50x = 62,622,804,895,981,044,236,288
  5. Step 5: Solve for x
    x = 62,622,804,895,981,044,236,288/286,724,742,141.50
  6. Step 6: Final answer
    x = 218,407,398,078.94

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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.