Home / 128,860,371.24-177,827,338.62-70,913,619.24

Finding the Fourth Proportional to 128,860,371.24, 177,827,338.62 and 70,913,619.24

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Solution

The fourth proportional to 128,860,371.24, 177,827,338.62 and 70,913,619.24 is: 97,860,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,860,371.24 : 177,827,338.62 = 70,913,619.24 : x
  2. Step 2: Convert to fraction form
    128,860,371.24/177,827,338.62 = 70,913,619.24/x
  3. Step 3: Cross multiply
    128,860,371.24x = 177,827,338.62 × 70,913,619.24
  4. Step 4: Simplify right side
    128,860,371.24x = 12,610,380,181,361,226
  5. Step 5: Solve for x
    x = 12,610,380,181,361,226/128,860,371.24
  6. Step 6: Final answer
    x = 97,860,809.03

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1.5x scale

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.