Home / 208,087,010.55-287,159,974.56-124,455,139.70

Finding the Fourth Proportional to 208,087,010.55, 287,159,974.56 and 124,455,139.70

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Solution

The fourth proportional to 208,087,010.55, 287,159,974.56 and 124,455,139.70 is: 171,748,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087,010.55 : 287,159,974.56 = 124,455,139.70 : x
  2. Step 2: Convert to fraction form
    208,087,010.55/287,159,974.56 = 124,455,139.70/x
  3. Step 3: Cross multiply
    208,087,010.55x = 287,159,974.56 × 124,455,139.70
  4. Step 4: Simplify right side
    208,087,010.55x = 35,738,534,748,677,444
  5. Step 5: Solve for x
    x = 35,738,534,748,677,444/208,087,010.55
  6. Step 6: Final answer
    x = 171,748,032.97

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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.