Home / 128,896,002.90-193,344,004.35-71,565,110.10

Finding the Fourth Proportional to 128,896,002.90, 193,344,004.35 and 71,565,110.10

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Solution

The fourth proportional to 128,896,002.90, 193,344,004.35 and 71,565,110.10 is: 107,347,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,896,002.90 : 193,344,004.35 = 71,565,110.10 : x
  2. Step 2: Convert to fraction form
    128,896,002.90/193,344,004.35 = 71,565,110.10/x
  3. Step 3: Cross multiply
    128,896,002.90x = 193,344,004.35 × 71,565,110.10
  4. Step 4: Simplify right side
    128,896,002.90x = 13,836,684,958,482,628
  5. Step 5: Solve for x
    x = 13,836,684,958,482,628/128,896,002.90
  6. Step 6: Final answer
    x = 107,347,665.15

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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.