Home / 208,464,529.78-287,715,537.69-115,674,931.18

Finding the Fourth Proportional to 208,464,529.78, 287,715,537.69 and 115,674,931.18

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Solution

The fourth proportional to 208,464,529.78, 287,715,537.69 and 115,674,931.18 is: 159,650,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,464,529.78 : 287,715,537.69 = 115,674,931.18 : x
  2. Step 2: Convert to fraction form
    208,464,529.78/287,715,537.69 = 115,674,931.18/x
  3. Step 3: Cross multiply
    208,464,529.78x = 287,715,537.69 × 115,674,931.18
  4. Step 4: Simplify right side
    208,464,529.78x = 33,281,475,021,707,448
  5. Step 5: Solve for x
    x = 33,281,475,021,707,448/208,464,529.78
  6. Step 6: Final answer
    x = 159,650,541.30

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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.