Home / 78,710,407.13-108,623,647.06-43,430,500.85

Finding the Fourth Proportional to 78,710,407.13, 108,623,647.06 and 43,430,500.85

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Solution

The fourth proportional to 78,710,407.13, 108,623,647.06 and 43,430,500.85 is: 59,935,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,710,407.13 : 108,623,647.06 = 43,430,500.85 : x
  2. Step 2: Convert to fraction form
    78,710,407.13/108,623,647.06 = 43,430,500.85/x
  3. Step 3: Cross multiply
    78,710,407.13x = 108,623,647.06 × 43,430,500.85
  4. Step 4: Simplify right side
    78,710,407.13x = 4,717,579,395,317,736
  5. Step 5: Solve for x
    x = 4,717,579,395,317,736/78,710,407.13
  6. Step 6: Final answer
    x = 59,935,903.87

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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.