Home / 128,753,670.48-177,681,330.45-70,017,611.96

Finding the Fourth Proportional to 128,753,670.48, 177,681,330.45 and 70,017,611.96

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Solution

The fourth proportional to 128,753,670.48, 177,681,330.45 and 70,017,611.96 is: 96,624,992.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,753,670.48 : 177,681,330.45 = 70,017,611.96 : x
  2. Step 2: Convert to fraction form
    128,753,670.48/177,681,330.45 = 70,017,611.96/x
  3. Step 3: Cross multiply
    128,753,670.48x = 177,681,330.45 × 70,017,611.96
  4. Step 4: Simplify right side
    128,753,670.48x = 12,440,822,447,984,630
  5. Step 5: Solve for x
    x = 12,440,822,447,984,630/128,753,670.48
  6. Step 6: Final answer
    x = 96,624,992.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.