Home / 78,893,998.80-118,340,998.20-64,545,091.80

Finding the Fourth Proportional to 78,893,998.80, 118,340,998.20 and 64,545,091.80

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Solution

The fourth proportional to 78,893,998.80, 118,340,998.20 and 64,545,091.80 is: 96,817,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893,998.80 : 118,340,998.20 = 64,545,091.80 : x
  2. Step 2: Convert to fraction form
    78,893,998.80/118,340,998.20 = 64,545,091.80/x
  3. Step 3: Cross multiply
    78,893,998.80x = 118,340,998.20 × 64,545,091.80
  4. Step 4: Simplify right side
    78,893,998.80x = 7,638,330,592,522,635
  5. Step 5: Solve for x
    x = 7,638,330,592,522,635/78,893,998.80
  6. Step 6: Final answer
    x = 96,817,637.70

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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.