Home / 72,726,070.60-100,364,110.71-39,688,453.08

Finding the Fourth Proportional to 72,726,070.60, 100,364,110.71 and 39,688,453.08

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Solution

The fourth proportional to 72,726,070.60, 100,364,110.71 and 39,688,453.08 is: 54,771,229.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726,070.60 : 100,364,110.71 = 39,688,453.08 : x
  2. Step 2: Convert to fraction form
    72,726,070.60/100,364,110.71 = 39,688,453.08/x
  3. Step 3: Cross multiply
    72,726,070.60x = 100,364,110.71 × 39,688,453.08
  4. Step 4: Simplify right side
    72,726,070.60x = 3,983,296,298,454,666
  5. Step 5: Solve for x
    x = 3,983,296,298,454,666/72,726,070.60
  6. Step 6: Final answer
    x = 54,771,229.43

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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.