Home / 208,007,535.66-287,050,140.24-115,187,931.42

Finding the Fourth Proportional to 208,007,535.66, 287,050,140.24 and 115,187,931.42

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Solution

The fourth proportional to 208,007,535.66, 287,050,140.24 and 115,187,931.42 is: 158,959,201.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,007,535.66 : 287,050,140.24 = 115,187,931.42 : x
  2. Step 2: Convert to fraction form
    208,007,535.66/287,050,140.24 = 115,187,931.42/x
  3. Step 3: Cross multiply
    208,007,535.66x = 287,050,140.24 × 115,187,931.42
  4. Step 4: Simplify right side
    208,007,535.66x = 33,064,711,868,066,504
  5. Step 5: Solve for x
    x = 33,064,711,868,066,504/208,007,535.66
  6. Step 6: Final answer
    x = 158,959,201.95

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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.