Home / 128,975,239.40-193,457,455.10-41,534,820.91

Finding the Fourth Proportional to 128,975,239.40, 193,457,455.10 and 41,534,820.91

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Solution

The fourth proportional to 128,975,239.40, 193,457,455.10 and 41,534,820.91 is: 62,300,491.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,975,239.40 : 193,457,455.10 = 41,534,820.91 : x
  2. Step 2: Convert to fraction form
    128,975,239.40/193,457,455.10 = 41,534,820.91/x
  3. Step 3: Cross multiply
    128,975,239.40x = 193,457,455.10 × 41,534,820.91
  4. Step 4: Simplify right side
    128,975,239.40x = 8,035,220,751,282,865
  5. Step 5: Solve for x
    x = 8,035,220,751,282,865/128,975,239.40
  6. Step 6: Final answer
    x = 62,300,491.08

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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.