Home / 128,740,011.70-193,110,017.55-114,709,969.30

Finding the Fourth Proportional to 128,740,011.70, 193,110,017.55 and 114,709,969.30

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Solution

The fourth proportional to 128,740,011.70, 193,110,017.55 and 114,709,969.30 is: 172,064,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,740,011.70 : 193,110,017.55 = 114,709,969.30 : x
  2. Step 2: Convert to fraction form
    128,740,011.70/193,110,017.55 = 114,709,969.30/x
  3. Step 3: Cross multiply
    128,740,011.70x = 193,110,017.55 × 114,709,969.30
  4. Step 4: Simplify right side
    128,740,011.70x = 22,151,644,184,682,964
  5. Step 5: Solve for x
    x = 22,151,644,184,682,964/128,740,011.70
  6. Step 6: Final answer
    x = 172,064,953.95

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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.