Home / 72,637,133.77-100,238,416.22-39,596,654.01

Finding the Fourth Proportional to 72,637,133.77, 100,238,416.22 and 39,596,654.01

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Solution

The fourth proportional to 72,637,133.77, 100,238,416.22 and 39,596,654.01 is: 54,642,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,637,133.77 : 100,238,416.22 = 39,596,654.01 : x
  2. Step 2: Convert to fraction form
    72,637,133.77/100,238,416.22 = 39,596,654.01/x
  3. Step 3: Cross multiply
    72,637,133.77x = 100,238,416.22 × 39,596,654.01
  4. Step 4: Simplify right side
    72,637,133.77x = 3,969,105,885,347,031.50
  5. Step 5: Solve for x
    x = 3,969,105,885,347,031.50/72,637,133.77
  6. Step 6: Final answer
    x = 54,642,930.96

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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.