Home / 107,838,419.20-161,757,628.80-67,023,750.40

Finding the Fourth Proportional to 107,838,419.20, 161,757,628.80 and 67,023,750.40

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Solution

The fourth proportional to 107,838,419.20, 161,757,628.80 and 67,023,750.40 is: 100,535,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,838,419.20 : 161,757,628.80 = 67,023,750.40 : x
  2. Step 2: Convert to fraction form
    107,838,419.20/161,757,628.80 = 67,023,750.40/x
  3. Step 3: Cross multiply
    107,838,419.20x = 161,757,628.80 × 67,023,750.40
  4. Step 4: Simplify right side
    107,838,419.20x = 10,841,602,937,987,052
  5. Step 5: Solve for x
    x = 10,841,602,937,987,052/107,838,419.20
  6. Step 6: Final answer
    x = 100,535,625.60

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1.5x scale

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.