Home / 72,656,529.67-100,161,828.61-57,159,700.39

Finding the Fourth Proportional to 72,656,529.67, 100,161,828.61 and 57,159,700.39

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Solution

The fourth proportional to 72,656,529.67, 100,161,828.61 and 57,159,700.39 is: 78,798,425.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,656,529.67 : 100,161,828.61 = 57,159,700.39 : x
  2. Step 2: Convert to fraction form
    72,656,529.67/100,161,828.61 = 57,159,700.39/x
  3. Step 3: Cross multiply
    72,656,529.67x = 100,161,828.61 × 57,159,700.39
  4. Step 4: Simplify right side
    72,656,529.67x = 5,725,220,113,862,130
  5. Step 5: Solve for x
    x = 5,725,220,113,862,130/72,656,529.67
  6. Step 6: Final answer
    x = 78,798,425.14

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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.