Home / 72,703,666.60-108,962,879.10-38,641,330.60

Finding the Fourth Proportional to 72,703,666.60, 108,962,879.10 and 38,641,330.60

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Solution

The fourth proportional to 72,703,666.60, 108,962,879.10 and 38,641,330.60 is: 57,912,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,703,666.60 : 108,962,879.10 = 38,641,330.60 : x
  2. Step 2: Convert to fraction form
    72,703,666.60/108,962,879.10 = 38,641,330.60/x
  3. Step 3: Cross multiply
    72,703,666.60x = 108,962,879.10 × 38,641,330.60
  4. Step 4: Simplify right side
    72,703,666.60x = 4,210,470,634,430,930.50
  5. Step 5: Solve for x
    x = 4,210,470,634,430,930.50/72,703,666.60
  6. Step 6: Final answer
    x = 57,912,768.80

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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.