Home / 138,673,875.40-208,035,696.30-57,903,008.20

Finding the Fourth Proportional to 138,673,875.40, 208,035,696.30 and 57,903,008.20

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Solution

The fourth proportional to 138,673,875.40, 208,035,696.30 and 57,903,008.20 is: 86,864,902.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,673,875.40 : 208,035,696.30 = 57,903,008.20 : x
  2. Step 2: Convert to fraction form
    138,673,875.40/208,035,696.30 = 57,903,008.20/x
  3. Step 3: Cross multiply
    138,673,875.40x = 208,035,696.30 × 57,903,008.20
  4. Step 4: Simplify right side
    138,673,875.40x = 12,045,892,628,751,610
  5. Step 5: Solve for x
    x = 12,045,892,628,751,610/138,673,875.40
  6. Step 6: Final answer
    x = 86,864,902.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.