Home / 72,478,272.53-99,986,939.80-43,092,882.14

Finding the Fourth Proportional to 72,478,272.53, 99,986,939.80 and 43,092,882.14

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Solution

The fourth proportional to 72,478,272.53, 99,986,939.80 and 43,092,882.14 is: 59,448,511.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,478,272.53 : 99,986,939.80 = 43,092,882.14 : x
  2. Step 2: Convert to fraction form
    72,478,272.53/99,986,939.80 = 43,092,882.14/x
  3. Step 3: Cross multiply
    72,478,272.53x = 99,986,939.80 × 43,092,882.14
  4. Step 4: Simplify right side
    72,478,272.53x = 4,308,725,411,733,008
  5. Step 5: Solve for x
    x = 4,308,725,411,733,008/72,478,272.53
  6. Step 6: Final answer
    x = 59,448,511.41

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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.