Home / 128,773,778.19-193,161,862.95-36,657,513.03

Finding the Fourth Proportional to 128,773,778.19, 193,161,862.95 and 36,657,513.03

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Solution

The fourth proportional to 128,773,778.19, 193,161,862.95 and 36,657,513.03 is: 54,986,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,773,778.19 : 193,161,862.95 = 36,657,513.03 : x
  2. Step 2: Convert to fraction form
    128,773,778.19/193,161,862.95 = 36,657,513.03/x
  3. Step 3: Cross multiply
    128,773,778.19x = 193,161,862.95 × 36,657,513.03
  4. Step 4: Simplify right side
    128,773,778.19x = 7,080,833,507,988,699
  5. Step 5: Solve for x
    x = 7,080,833,507,988,699/128,773,778.19
  6. Step 6: Final answer
    x = 54,986,609.91

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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.