Home / 72,346,061.60-108,519,092.40-66,803,328.80

Finding the Fourth Proportional to 72,346,061.60, 108,519,092.40 and 66,803,328.80

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Solution

The fourth proportional to 72,346,061.60, 108,519,092.40 and 66,803,328.80 is: 100,204,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346,061.60 : 108,519,092.40 = 66,803,328.80 : x
  2. Step 2: Convert to fraction form
    72,346,061.60/108,519,092.40 = 66,803,328.80/x
  3. Step 3: Cross multiply
    72,346,061.60x = 108,519,092.40 × 66,803,328.80
  4. Step 4: Simplify right side
    72,346,061.60x = 7,249,436,610,674,781
  5. Step 5: Solve for x
    x = 7,249,436,610,674,781/72,346,061.60
  6. Step 6: Final answer
    x = 100,204,993.20

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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.