Home / 128,259,903.60-176,993,925.12-69,521,307.62

Finding the Fourth Proportional to 128,259,903.60, 176,993,925.12 and 69,521,307.62

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Solution

The fourth proportional to 128,259,903.60, 176,993,925.12 and 69,521,307.62 is: 95,936,834.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,903.60 : 176,993,925.12 = 69,521,307.62 : x
  2. Step 2: Convert to fraction form
    128,259,903.60/176,993,925.12 = 69,521,307.62/x
  3. Step 3: Cross multiply
    128,259,903.60x = 176,993,925.12 × 69,521,307.62
  4. Step 4: Simplify right side
    128,259,903.60x = 12,304,849,114,253,796
  5. Step 5: Solve for x
    x = 12,304,849,114,253,796/128,259,903.60
  6. Step 6: Final answer
    x = 95,936,834.26

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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.