Home / 129,172,256.40-193,795,709.40-38,298,032.40

Finding the Fourth Proportional to 129,172,256.40, 193,795,709.40 and 38,298,032.40

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Solution

The fourth proportional to 129,172,256.40, 193,795,709.40 and 38,298,032.40 is: 57,458,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,172,256.40 : 193,795,709.40 = 38,298,032.40 : x
  2. Step 2: Convert to fraction form
    129,172,256.40/193,795,709.40 = 38,298,032.40/x
  3. Step 3: Cross multiply
    129,172,256.40x = 193,795,709.40 × 38,298,032.40
  4. Step 4: Simplify right side
    129,172,256.40x = 7,421,994,357,582,184
  5. Step 5: Solve for x
    x = 7,421,994,357,582,184/129,172,256.40
  6. Step 6: Final answer
    x = 57,458,114.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.