Home / 72,656,528.67-100,161,827.24-57,159,699.39

Finding the Fourth Proportional to 72,656,528.67, 100,161,827.24 and 57,159,699.39

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Solution

The fourth proportional to 72,656,528.67, 100,161,827.24 and 57,159,699.39 is: 78,798,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,656,528.67 : 100,161,827.24 = 57,159,699.39 : x
  2. Step 2: Convert to fraction form
    72,656,528.67/100,161,827.24 = 57,159,699.39/x
  3. Step 3: Cross multiply
    72,656,528.67x = 100,161,827.24 × 57,159,699.39
  4. Step 4: Simplify right side
    72,656,528.67x = 5,725,219,935,105,715
  5. Step 5: Solve for x
    x = 5,725,219,935,105,715/72,656,528.67
  6. Step 6: Final answer
    x = 78,798,423.76

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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.