Home / 100,699,610,412.80-138,964,755,434.46-54,973,885,818.36

Finding the Fourth Proportional to 100,699,610,412.80, 138,964,755,434.46 and 54,973,885,818.36

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Solution

The fourth proportional to 100,699,610,412.80, 138,964,755,434.46 and 54,973,885,818.36 is: 75,863,576,499.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,699,610,412.80 : 138,964,755,434.46 = 54,973,885,818.36 : x
  2. Step 2: Convert to fraction form
    100,699,610,412.80/138,964,755,434.46 = 54,973,885,818.36/x
  3. Step 3: Cross multiply
    100,699,610,412.80x = 138,964,755,434.46 × 54,973,885,818.36
  4. Step 4: Simplify right side
    100,699,610,412.80x = 7,639,432,598,029,631,225,856
  5. Step 5: Solve for x
    x = 7,639,432,598,029,631,225,856/100,699,610,412.80
  6. Step 6: Final answer
    x = 75,863,576,499.58

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1.5x scale

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.