Home / 128,259,903.82-176,993,925.40-69,521,307.82

Finding the Fourth Proportional to 128,259,903.82, 176,993,925.40 and 69,521,307.82

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Solution

The fourth proportional to 128,259,903.82, 176,993,925.40 and 69,521,307.82 is: 95,936,834.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,903.82 : 176,993,925.40 = 69,521,307.82 : x
  2. Step 2: Convert to fraction form
    128,259,903.82/176,993,925.40 = 69,521,307.82/x
  3. Step 3: Cross multiply
    128,259,903.82x = 176,993,925.40 × 69,521,307.82
  4. Step 4: Simplify right side
    128,259,903.82x = 12,304,849,170,003,516
  5. Step 5: Solve for x
    x = 12,304,849,170,003,516/128,259,903.82
  6. Step 6: Final answer
    x = 95,936,834.53

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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.